输入:
60 14 9 4 1 7 2 3 5 43 6 41 8 12 10 11 13 17 15 27 16 24 18 19 20 21 22 23 40 25 26 30 28 29 31 34 32 33 35 37 36 60 38 39 59 58 42 57 44 45 46 47 48 49 50 51 52 53 54 55 56
输出:
a a c a b a a b a b a d b c a b b c a b b a a b a b b a b b c a b a a b a a d b a b a b a b a b a b b c a b a b b a a b a b b a b a a b a b b a b a a b b a a b a b a a a d d b a a d b a b a b a b a b a b a b a b a b a b a b a b a b b b b b
经过测验,可以Hack掉一部分题解
如 https://www.luogu.com.cn/article/qmwhy0w2 。
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