咸鱼の小窝

Problem Descriptionlcy gives a hard puzzle to feng5166,lwg,JGShining and Ignatius: gave a and b,how to know the a^b.everybody objects to this BT problem,so lcy makes the problem easier than begin.

QuadratTime Limit: 1000MS Memory Limit: 65536KBSubmit Statistic DiscussProblem DescriptionIt is well-known that for any n there are exactly four n-digit numbers (including ones with leading