uva11063測資A

Input:
6
1 9 19 -1 45 70

5
1 2 3 4 4

4
7 8 9 10

3
1 3 2

2
9999 10000

6
1 9 19 45 70 150

100
42 109 143 143 212 236 314 372 434 498 503 548 629 656 717 808 903 945 972 1008 1099 1103 1105 1158 1250 1332 1353 1369 1387 1482 1529 1555 1626 1664 1733 1745 1812 1911 1946 2040 2043 2054 2076 2109 2182 2246 2287 2298 2351 2419 2466 2510 2572 2629 2666 2725 2748 2789 2818 2896 2912 2947 3037 3079 3167 3173 3213 3255 3319 3367 3413 3418 3508 3537 3607 3657 3663 3664 3757 3805 3834 3857 3941 3995 4051 4091 4157 4233 4264 4272 4316 4355 4381 4404 4441 4479 4497 4579 4608 4649 

99
36 111 191 262 324 339 346 351 411 506 515 542 624 675 706 770 780 788 803 890 979 1028 1086 1171 1231 1241 1265 1273 1366 1463 1546 1617 1692 1775 1856 1914 1999 2039 2125 2181 2217 2249 2278 2353 2381 2468 2553 2625 2673 2721 2741 2801 2801 2884 2891 2941 3031 3056 3076 3110 3122 3177 3197 3242 3267 3284 3303 3357 3359 3419 3497 3561 3588 3634 3718 3775 3857 3907 3987 4070 4255 4352 4397 4485 4520 4542 4570 4669 4677 4717 4728 4786 4881 4906 4961 4980 5069 5084 5167

100
15 28 97 162 201 210 262 307 400 431 506 556 592 687 771 858 898 985 985 1009 1058 1091 1165 1237 1328 1379 1425 1492 1510 1606 1633 1677 1695 1736 1800 1851 1930 1972 2060 2083 2174 2232 2311 2337 2429 2445 2515 2537 2596 2612 2695 2763 2832 2905 2984 3049 3055 3120 3169 3261 3320 3398 3469 3532 3620 3633 3730 3796 3873 3881 3949 3995 4083 4099 4156 4220 4292 4377 4420 4459 4495 4509 4555 4643 4723 4766 4851 4911 5006 5082 5107 5116 5208 5247 5265 5270 5308 5390 5429 5503 

Output:
Case #1: It is not a B2-Sequence.

Case #2: It is not a B2-Sequence.

Case #3: It is not a B2-Sequence.

Case #4: It is not a B2-Sequence.

Case #5: It is a B2-Sequence.

Case #6: It is a B2-Sequence.

Case #7: It is not a B2-Sequence.

Case #8: It is not a B2-Sequence.

Case #9: It is not a B2-Sequence.