1 0 0 0.76454 2 0.22241 0 0.68381 3 0.36484 0 1.274 4 0.7017 0 0.48175 5 0.79075 0 1.0364 6 2.0689 0 2.3969 7 2.8449 0 1.8939 8 3.3105 0 1.8196 9 3.6768 0 2.457 10 4.3114 0 2.4421 11 4.9104 0 0.58375 12 5.0146 0 1.5677 13 5.3552 0 1.4388 14 5.6216 0 1.4962 15 6.6034 0 1.7249 16 7.5705 0 1.8476 17 8.5354 0 1.9201 18 9.4397 0 1.9758 19 10.296 0 1.7629 20 11.02 0 0 21 11.02 0 0 22 11.02 0 1.4136 23 11.547 0 1.733 24 12.137 0 1.503 25 12.667 0 2.4557 26 13.511 0 2.2917 27 14.259 0 1.9125 28 15.139 0 1.5702 29 15.807 0 1.6424 30 16.628 0 1.9966 31 17.557 0 2.0488 32 18.346 0 1.5381 33 18.433 0 2.2261 34 18.945 0 1.7984 35 19.199 0 0.84326 36 19.214 0 0.92491 37 18.855 0 1.6395 38 19.479 0 1.7991 39 19.801 0 2.4946 40 20.399 0 1.7657 41 20.246 0 2.4678 42 20.294 0 2.3855 43 20.425 0 1.6225 44 20.215 0 1.9881 45 20.555 0 1.9909 46 21.284 0 0.81283 47 21.131 0 0.94455 48 21.919 0 0.90589 49 22.371 0 1.2911 50 22.771 0 1.4679 51 23.239 0 0.90034 52 23.582 0 1.0002 53 23.951 0 0.99651 54 24.687 0 0.87161 55 25.399 0 0.80118 56 24.784 0 1.0001 57 25.116 0 0.64643 58 25.29 0 1.0284 59 25.392 0 1.2563 60 25.459 0 1.2761 61 25.446 0 1.2924 62 25.884 0 2.5434 63 25.743 0 3.3212 64 26.788 0 2.8293 65 28.362 0 1.1574 66 29.215 0 1.8969 67 29.725 0 2.7817 68 29.889 0 2.5075 69 29.83 0 2.232 70 29.661 0 2.3743 71 30.311 0 2.578 72 29.67 0 3.8673 73 28.91 0 3.8843 74 28.556 0 3.6186 75 28.644 0 2.9547 76 28.57 0 2.3974 77 28.381 0 2.081 78 28.049 0 2.4526 79 27.707 0 1.8884 80 27.327 0 1.7259 81 28.068 0 1.8619 82 28.025 0 1.3277 83 27.849 0 1.7347 84 27.819 0 1.7123 85 27.789 0 1.6208 86 27.611 0 2.545 87 28.415 0 2.9849 88 28.63 0 2.5269 89 27.985 0 2.4976 90 27.884 0 2.1042 91 27.649 0 3.0184 92 27.571 0 3.5411 93 27.609 0 2.2266 94 27.697 0 1.6703 95 28.275 0 1.1478 96 28.69 0 1.5804 97 29.217 0 2.1204 98 29.888 0 1.2235 99 29.611 0 1.3951 100 29.601 0 2.8519 101 29.619 0 3.4004 102 28.971 0 2.6092 103 29.706 0 1.2402 104 30.35 0 0.95022 105 30.807 0 1.0938 106 31.511 0 1.3034 107 31.934 0 2.1968 108 32.143 0 2.3138 109 32.489 0 2.2017 110 32.71 0 2.4632 111 32.959 0 2.9133 112 32.898 0 2.3834 113 33.431 0 2.4504 114 33.618 0 2.7305 115 33.739 0 2.4504 116 33.246 0 2.319 117 32.777 0 2.3969 118 32.404 0 2.1908 119 32.03 0 3.3609 120 31.634 0 2.1224 121 30.809 0 1.9003 122 29.877 0 1.564 123 28.447 0 1.9119 124 26.981 0 2.3918 125 25.656 0 2.9847 126 24.722 0 3.1851 127 24.081 0 2.7466 128 24.226 0 2.3992 129 23.964 0 2.189 130 23.114 0 3.3493 131 22.257 0 3.1738 132 21.31 0 2.8796 133 21.453 0 2.8108 134 21.818 0 2.3363 135 21.791 0 3.0866 136 22.018 0 2.4564 137 22.01 0 2.1357 138 21.975 0 2.0138 139 22.585 0 0.93338 140 22.72 0 1.6251 141 23.436 0 1.4083 142 24.162 0 2.1778 143 25.285 0 2.6198 144 26.1 0 2.0044 145 26.162 0 2.4011 146 26.596 0 2.0509 147 27.126 0 1.5799 148 27.194 0 1.5659 149 27.194 0 1.3157 150 26.776 0 0.99827 151 26.665 0 1.7984 152 26.273 0 2.0853 153 25.608 0 1.763 154 24.751 0 2.4022 155 24.254 0 2.2425 156 23.553 0 2.4571 157 23.149 0 1.1656 158 22.359 0 0.72865 159 21.02 0 1.2076 160 19.761 0 1.402 161 19.281 0 1.8189 162 18.782 0 1.4856 163 18.736 0 0.31394 164 18.514 0 0.76386 165 17.206 0 2.0096 166 15.653 0 2.0691 167 14.375 0 1.2148 168 13.816 0 1.3071 169 13.525 0 1.502 170 14.419 0 1.4087 171 14.637 0 3.4854 172 15.002 0 4.1706 173 15.494 0 4.336 174 15.768 0 3.6048 175 16.273 0 1.8753 176 16.527 0 2.1662 177 16.785 0 1.3131 178 16.34 0 1.5717 179 15.785 0 2.354 180 15.744 0 1.4298 181 15.616 0 2.001 182 15.791 0 1.4908 183 15.762 0 2.5073 184 16.67 0 2.2516 185 17.75 0 1.574 186 18.562 0 1.6841 187 19.343 0 2.1763 188 19.517 0 1.3581 189 19.303 0 1.687 190 19.686 0 2.2567 191 20.69 0 2.6736 192 21.807 0 2.7095 193 23.472 0 1.0024 194 23.865 0 2.2643 195 24.71 0 1.8202 196 24.779 0 2.2946 197 25.406 0 2.1102 198 25.624 0 2.4311 199 25.798 0 2.617 200 26.448 0 2.625 201 27.26 0 2.5271 202 27.926 0 1.8742 203 28.114 0 2.8889 204 28.462 0 2.2618 205 28.379 0 1.8712 206 27.948 0 2.2597 207 27.453 0 1.7512 208 26.65 0 1.1956 209 25.695 0 2.6392 210 25.257 0 2.4191 211 24.96 0 1.2575 212 24.905 0 1.9915 213 25.324 0 2.362 214 25.247 0 2.7536 215 25.231 0 2.3631 216 25.131 0 2.5031 217 25.106 0 1.7823 218 25.219 0 1.3652 219 24.906 0 1.2592 220 24.197 0 2.2616 221 24.286 0 2.7515 222 24.716 0 1.9857 223 24.293 0 2.9411 224 24.072 0 2.7977 225 23.914 0 0.79324 226 22.877 0 2.29 227 22.819 0 1.8767 228 22.282 0 2.5734 229 21.961 0 1.6797 230 21.201 0 1.0683 231 19.964 0 1.9913 232 18.933 0 1.941 233 17.629 0 2.6782 234 17.372 0 2.1815 235 16.704 0 2.1416 236 16.579 0 1.026 237 16.206 0 1.5156 238 15.862 0 1.4231 239 16.166 0 1.7121 240 16.857 0 0.98599 241 17.252 0 1.8223 242 18.082 0 2.5466 243 18.447 0 1.9756 244 17.511 0 2.887 245 17.38 0 2.1641 246 16.972 0 1.9333 247 16.272 0 2.1041 248 15.933 0 3.4774 249 16.265 0 3.0277 250 16.706 0 1.9459 251 17.103 0 0.70967 252 16.783 0 1.0992 253 17.054 0 1.2361 254 17.526 0 0.7236 255 17.719 0 1.0104 256 17.71 0 1.01 257 17.546 0 0.15275 258 16.28 0 0.84252 259 15.226 0 1.0739 260 14.866 0 1.2104 261 15.4 0 0.9881 262 15.019 0 0.76889 263 14.474 0 0.65592 264 14.844 0 0.22702 265 14.77 0 0.84082 266 14.908 0 1.0635 267 15.753 0 1.4637 268 15.933 0 2.9918 269 16.974 0 2.1745 270 17.14 0 2.8395 271 17.307 0 2.7893 272 17.916 0 0.4456 273 17.946 0 0.48858 274 18.001 0 0 275 18.001 0 0 276 17.91 0 1.3669 277 18.137 0 1.3912 278 18.453 0 0.45281 279 18.288 0 1.5742 280 18.133 0 2.1799 281 18.242 0 2.3104 282 18.839 0 1.5721 283 19.583 0 1.7637 284 19.954 0 2.9086 285 20.537 0 2.9369 286 21.889 0 1.5156 287 22.5 0 1.5722 288 23.945 0 2.0085 289 24.686 0 2.1681 290 24.967 0 2.2892 291 24.841 0 2.6573 292 25.849 0 3.2502 293 26.443 0 4.4716 294 27.222 0 3.9688 295 27.697 0 2.9863 296 27.902 0 2.2845 297 27.697 0 3.5078 298 28.124 0 3.4353 299 28.594 0 2.8991 300 29.048 0 1.0153 301 29.276 0 1.6412 302 29.762 0 1.6715 303 29.999 0 2.461 304 29.948 0 2.4638 305 29.814 0 2.1083 306 28.792 0 4.1093 307 28.315 0 3.5444 308 28.139 0 3.391 309 28.07 0 2.4601 310 28.697 0 1.5722 311 28.667 0 2.0834 312 28.45 0 3.3583 313 29.594 0 2.2131 314 30.023 0 3.7402 315 30.252 0 4.1118 316 30.066 0 3.0952 317 29.942 0 2.4153 318 29.031 0 3.3465 319 28.116 0 2.9192 320 27.124 0 2.0056 321 26.058 0 2.0353 322 24.977 0 1.7078 323 24.063 0 1.5862 324 23.514 0 1.5869 325 22.829 0 1.5062 326 21.828 0 2.4569 327 21.358 0 1.6599 328 20.814 0 1.2394 329 21.271 0 0.77403 330 21.35 0 1.405 331 21.479 0 1.9905 332 21.177 0 2.6157 333 20.931 0 1.3633 334 20.406 0 2.0231 335 20.416 0 1.1636 336 20.418 0 0.82254 337 20.45 0 1.4292 338 20.432 0 3.0536 339 20.489 0 2.9967 340 20.781 0 2.1239 341 20.695 0 2.0109 342 20.566 0 1.4629 343 20.494 0 0.72572 344 19.982 0 1.7661 345 19.415 0 2.0587 346 18.825 0 2.1312 347 18.342 0 2.1935 348 18.082 0 2.5426 349 17.85 0 1.9501 350 17.205 0 2.5821 351 17.546 0 0.88372 352 16.986 0 1.9687 353 16.674 0 3.0777 354 16.291 0 2.996 355 15.475 0 2.9879 356 14.831 0 2.0702 357 14.609 0 1.7296 358 13.288 0 1.6757 359 13.381 0 0.3704 360 13.258 0 0.81093 361 13.058 0 1.2054 362 12.841 0 1.447 363 13.235 0 2.5212 364 13.602 0 1.9319 365 13.947 0 0.19719 366 13.848 0 1.4404 367 13.434 0 1.7445 368 13.033 0 2.3396 369 12.634 0 2.3417 370 12.364 0 0.94728 371 11.724 0 1.1198 372 11.449 0 1.1233 373 11.198 0 2.2251 374 10.661 0 4.8593 375 10.689 0 4.9206 376 10.983 0 1.4853 377 10.674 0 2.7617 378 10.899 0 1.9451 379 10.898 0 1.1477 380 9.9617 0 0.19721 381 9.9617 0 0 382 9.9466 0 0.11299 383 9.8953 0 0.29171 384 9.6678 0 1.0515 385 9.4404 0 1.0396 386 9.1984 0 1.3556 387 10.421 0 2.2373 388 10.645 0 3.3487 389 10.946 0 2.5234 390 11.385 0 1.2064 391 11.047 0 1.4788 392 10.832 0 1.0403 393 10.808 0 0.76996 394 10.834 0 0.30908 395 10.801 0 1.0367 396 10.969 0 1.2031 397 11.102 0 1.0415 398 11.22 0 0.98776 399 11.12 0 3.2067 400 11.382 0 2.7615 401 12.151 0 2.1889 402 12.459 0 3.0902 403 13.167 0 2.9645 404 13.76 0 1.9924 405 14.286 0 1.506 406 14.817 0 0.25948 407 14.861 0 1.168 408 15.31 0 1.0828 409 15.203 0 1.2945 410 15.079 0 1.6004 411 15.305 0 1.2232 412 15.14 0 1.4837 413 14.976 0 2.7783 414 16.527 0 3.1488 415 17.471 0 2.4553 416 17.998 0 0.45248 417 17.976 0 0.61977 418 17.958 0 0.51784 419 17.573 0 1.2845 420 17.76 0 1.5286 421 18.351 0 1.7925 422 19.054 0 0.78726 423 18.427 0 3.1582 424 18.498 0 2.6117 425 18.359 0 2.0863 426 18.077 0 1.7801 427 17.969 0 2.2271 428 18.174 0 2.6146 429 17.699 0 2.6554 430 16.859 0 2.9297 431 16.951 0 2.0086 432 16.966 0 1.6029 433 17.077 0 1.537 434 17.101 0 2.1945 435 17.335 0 0.14539 436 17.252 0 0.96266 437 17.282 0 0.71725 438 17.353 0 0 439 17.313 0 0.28328 440 17.289 0 0.16249 441 17.289 0 0 442 17.195 0 1.0676 443 17.034 0 2.4195 444 18.024 0 2.1825 445 18.743 0 0.97698 446 18.734 0 0.7705 447 18.736 0 0.65188 448 18.749 0 0.77341 449 17.829 0 3.1554 450 17.723 0 2.4167 451 17.52 0 3.0332 452 16.915 0 4.1922 453 17.341 0 2.5569 454 16.4 0 2.0112 455 15.43 0 2.7219 456 15.429 0 2.551 457 16.093 0 1.3255 458 15.903 0 2.441 459 15.48 0 3.7049 460 15.182 0 3.8033 461 16.135 0 0.12473 462 16.091 0 0.41827 463 16.047 0 0.25948 464 15.998 0 1.4527 465 16.14 0 1.7783 466 16.215 0 1.8717 467 16.272 0 1.6895 468 16.328 0 1.6637 469 16.452 0 1.7139 470 16.612 0 0.47936 471 16.527 0 1.0282 472 16.438 0 3.0067 473 16.926 0 1.3979 474 16.659 0 3.9525 475 16.609 0 4.0605 476 17.202 0 1.8427 477 17.548 0 1.6704 478 17.669 0 3.3649 479 18.266 0 2.6936 480 18.522 0 3.051 481 18.655 0 2.285 482 17.781 0 1.2101 483 17.885 0 1.5602 484 17.94 0 2.1442 485 17.882 0 2.2521 486 17.821 0 1.555 487 17.613 0 0.91775 488 17.551 0 0.33749 489 17.515 0 0.25831 490 17.462 0 0.93628 491 17.561 0 1.2318 492 17.107 0 1.4937 493 16.596 0 1.2703 494 15.816 0 1.8487 495 14.975 0 2.1868 496 14.067 0 2.1248 497 13.411 0 1.1457 498 12.607 0 1.2794 499 12.936 0 2.5766 500 13.014 0 2.6216 501 12.723 0 2.3507 502 12.066 0 2.2322 503 11.338 0 2.8171 504 11.361 0 2.2157 505 11.244 0 1.5964 506 11.131 0 2.1551 507 11.2 0 2.2339 508 10.582 0 4.3196 509 11.078 0 3.3101 510 11.928 0 2.1007 511 12.44 0 2.3203 512 12.874 0 4.1236 513 13.92 0 1.8196 514 14.158 0 2.8778 515 15.285 0 2.0956 516 15.971 0 2.347 517 16.518 0 2.5625 518 16.763 0 2.9509 519 17.464 0 2.2172 520 17.628 0 3.5487 521 17.672 0 3.5967 522 18.051 0 3.3137 523 18.514 0 1.7489 524 18.239 0 3.4617 525 18.521 0 2.7445 526 19.056 0 2.5041 527 19.644 0 2.7042 528 19.536 0 2.7069 529 19.174 0 1.9065 530 19.75 0 1.5078 531 20.176 0 3.778 532 20.301 0 4.1954 533 20.176 0 4.8183 534 20.631 0 2.5924 535 20.786 0 2.6613 536 20.963 0 3.0898 537 21.606 0 3.2204 538 22.252 0 3.0648 539 23.188 0 3.137 540 23.945 0 3.0229 541 24.722 0 2.5034 542 25.121 0 3.1638 543 25.621 0 2.8011 544 25.794 0 2.3117 545 25.96 0 1.5782 546 26.128 0 2.0283 547 26.405 0 0.85876 548 26.479 0 0.70875 549 26.403 0 2.3439 550 26.781 0 2.3462 551 27.089 0 2.7387 552 27.413 0 2.4946 553 27.72 0 1.9932 554 27.819 0 1.7755 555 28.534 0 2.2898 556 28.919 0 3.8863 557 29.472 0 3.611 558 30.005 0 2.4465 559 30.437 0 1.8666 560 30.65 0 1.192 561 29.952 0 2.527 562 30.609 0 2.7792 563 31.248 0 1.993 564 30.675 0 2.6493 565 30.179 0 0.95983 566 30.068 0 1.2617 567 29.632 0 2.1707 568 29.33 0 1.6009 569 28.547 0 1.919 570 28.855 0 1.7439 571 28.582 0 1.84 572 28.076 0 2.5549 573 27.898 0 2.5734 574 27.741 0 2.4896 575 27.492 0 3.8828 576 27.106 0 2.2406 577 26.729 0 1.5811 578 26.252 0 1.5643 579 25.76 0 1.9607 580 26.706 0 2.041 581 26.809 0 3.3707 582 27.081 0 2.5218 583 27.214 0 2.3025 584 26.826 0 3.8981 585 26.626 0 3.0141 586 26.649 0 0.90166 587 26.488 0 0.83452 588 25.98 0 1.9589 589 25.534 0 4.5983 590 26.734 0 2.5351 591 26.217 0 6.5043 592 25.875 0 7.0949 593 25.752 0 6.8544 594 26.033 0 3.8665 595 25.875 0 3.0018 596 25.152 0 2.6519 597 23.917 0 3.6086 598 23.225 0 1.5008 599 22.51 0 3.9508 600 22.959 0 2.4873 601 23.186 0 4.1165 602 23.959 0 5.0377 603 24.403 0 4.902 604 24.419 0 4.4231 605 25.695 0 1.4566 606 26.224 0 3.2355 607 27.815 0 1.7996 608 28.632 0 1.9621 609 28.826 0 0.98884 610 28.712 0 1.2243 611 28.659 0 0.63067 612 28.007 0 2.3794 613 27.779 0 1.8608 614 27.523 0 2.0115 615 27.349 0 1.8395 616 27.011 0 1.4859 617 26.429 0 1.5376 618 25.945 0 1.3287 619 25.156 0 2.5853 620 24.489 0 1.7629 621 24.153 0 2.6691 622 23.797 0 2.9718 623 23.608 0 2.4037 624 23.355 0 2.0751 625 22.788 0 2.4 626 22.226 0 1.6256 627 21.259 0 2.0806 628 20.217 0 3.1872 629 20.507 0 3.0134 630 20.671 0 2.3788 631 20.749 0 2.0636 632 20.763 0 1.3978 633 20.563 0 0.84298 634 20.263 0 1.1619 635 19.955 0 1.185 636 19.824 0 0.83746 637 19.768 0 1.1439 638 19.635 0 1.8221 639 19.235 0 2.1498 640 18.952 0 3.0859 641 18.715 0 3.3252 642 18.198 0 3.1372 643 17.613 0 2.4693 644 17.239 0 2.049 645 17.331 0 0.88113 646 16.8 0 1.5357 647 16.801 0 0.50956 648 16.667 0 0.96657 649 16.315 0 2.17 650 15.582 0 3.3021 651 15.551 0 3.3311 652 15.406 0 3.3401 653 15.135 0 3.1607 654 14.838 0 1.9633 655 14.181 0 2.1024 656 13.495 0 1.9047 657 12.34 0 4.2266 658 12.119 0 2.9131 659 12.647 0 2.5184 660 12.952 0 2.0257 661 13.094 0 2.6924 662 12.844 0 2.7273 663 13.117 0 1.9988 664 12.903 0 3.5964 665 12.909 0 2.4818 666 13.302 0 1.4266 667 13.508 0 1.9527 668 14.103 0 1.8055 669 14.258 0 2.5535 670 14.04 0 2.0121 671 14.093 0 2.6609 672 14.138 0 3.3339 673 14.264 0 2.3077 674 13.972 0 1.8845 675 14.457 0 1.3094 676 15.703 0 1.1312 677 16.797 0 1.9011 678 17.444 0 1.691 679 18.41 0 2.8277 680 19.549 0 1.8662 681 20.669 0 2.4444 682 21.971 0 2.2741 683 23.101 0 2.1511 684 23.819 0 2.2737 685 24.982 0 2.017 686 25.841 0 2.5363 687 26.611 0 2.9949 688 27.03 0 3.1373 689 27.351 0 3.644 690 27.7 0 3.3197 691 28.645 0 2.8357 692 29.305 0 2.37 693 28.922 0 2.3339 694 28.496 0 2.7899 695 28.83 0 2.0908 696 28.008 0 2.4017 697 29.042 0 1.6954 698 29.112 0 1.9306 699 29.043 0 2.6858 700 29.304 0 3.0666 701 29.587 0 2.6483 702 30.428 0 1.6707 703 31.5 0 0.73473 704 32.51 0 0.99055 705 33.547 0 1.0486 706 34.568 0 1.1051 707 35.554 0 1.2416 708 36.502 0 1.4203 709 37.419 0 0.41711 710 37.479 0 0.46974 711 37.579 0 0.79882 712 36.919 0 1.4195 713 36.139 0 1.3901 714 35.381 0 1.2541 715 34.569 0 1.0391 716 33.737 0 0.85828 717 32.893 0 0.71077 718 32.156 0 1.643 719 31.882 0 3.0639 720 31.591 0 3.189 721 30.776 0 2.9409 722 29.408 0 3.93 723 28.188 0 3.39 724 26.873 0 3.511 725 25.633 0 3.4301 726 24.811 0 2.7661 727 23.634 0 2.5698 728 23.509 0 1.1614 729 23.289 0 2.2999 730 22.181 0 2.9649 731 20.993 0 3.0064 732 19.711 0 3.1451 733 19.219 0 2.1851 734 18.77 0 1.7365 735 17.671 0 2.27 736 16.297 0 2.7218 737 15.787 0 2.9407 738 15.162 0 2.8803 739 15.765 0 1.5949 740 16.469 0 1.3948 741 17.177 0 1.3667 742 17.364 0 1.8988 743 17.173 0 2.6833 744 16.59 0 2.8813 745 16.818 0 2.3307 746 16.732 0 3.2801 747 16.22 0 2.8665 748 16.517 0 3.514 749 16.867 0 2.3064 750 16.212 0 2.2914 751 15.453 0 2.3661 752 15.219 0 2.1397 753 15.052 0 2.1877 754 15.002 0 1.986 755 14.874 0 1.7344 756 14.548 0 1.8094 757 13.852 0 2.1842 758 13.095 0 2.0059 759 12.127 0 2.3354 760 11.042 0 2.5045 761 10.319 0 0.95373 762 10.143 0 1.445 763 9.0934 0 1.1611 764 9.1058 0 0.79033 765 9.1637 0 0.49873 766 9.2301 0 0.36235 767 9.252 0 0.51021 768 9.1889 0 0.89344 769 8.539 0 2.0408 770 7.9469 0 1.527 771 7.1162 0 2.2039 772 6.231 0 2.1978 773 5.257 0 2.204 774 4.3015 0 2.1494 775 3.4736 0 2.0245 776 2.651 0 1.983 777 1.7976 0 2.0418 778 1.0174 0 1.8574 779 0.35877 0 1.7548 780 0.19706 0 0.9827 781 0.072487 0 0.71722 782 0.072487 0 0 783 0.072487 0 0 784 0.072487 0 0 785 0.072487 0 0 786 0.060628 0 0.092881 787 0.047102 0 0.10335 788 0.031924 0 0.11344 789 0.015154 0 0.1229 790 6.0394e-14 0 0.11329 791 6.0394e-14 0 0 792 6.0394e-14 0 0