uva11541測資A

Input:
17
A2B4D1A2
A12
A1B1C1D1
A1C2E1P1T1
K1A1G2L1E1
O1P2O1
Y1A1H1O2
G1O2G1L1E1
G1I1V1E1M1E1S1O1M1E1S1U1N1S1H1I1N1E1
G10O5T3L0M9
B2C5F9S22
Q10W9E8R7T6Y5U4I3O2P1A0
Z12O6Q9W33X0P77
P0L20K19J18H17G16F15D14S13A12
I30O40P50Y80
A4B150C21
U120I30U20X10
Output:
Case 1: AABBBBDAA
Case 2: AAAAAAAAAAAA
Case 3: ABCD
Case 4: ACCEPT
Case 5: KAGGLE
Case 6: OPPO
Case 7: YAHOO
Case 8: GOOGLE
Case 9: GIVEMESOMESUNSHINE
Case 10: GGGGGGGGGGOOOOOTTTMMMMMMMMM
Case 11: BBCCCCCFFFFFFFFFSSSSSSSSSSSSSSSSSSSSSS
Case 12: QQQQQQQQQQWWWWWWWWWEEEEEEEERRRRRRRTTTTTTYYYYYUUUUIIIOOP
Case 13: ZZZZZZZZZZZZOOOOOOQQQQQQQQQWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Case 14: LLLLLLLLLLLLLLLLLLLLKKKKKKKKKKKKKKKKKKKJJJJJJJJJJJJJJJJJJHHHHHHHHHHHHHHHHHGGGGGGGGGGGGGGGGFFFFFFFFFFFFFFFDDDDDDDDDDDDDDSSSSSSSSSSSSSAAAAAAAAAAAA
Case 15: IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
Case 16: AAAABBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBCCCCCCCCCCCCCCCCCCCCC
Case 17: UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIUUUUUUUUUUUUUUUUUUUUXXXXXXXXXX