题目： Problem - 1060 (hdu.edu.cn)
#include <bits/stdc++.h>
using namespace std;
int solve(int x){double res = x*log10(x);return pow(10, res - floor(res));
}
int main(){int n, T;scanf("%d", &T);while(T--){scanf("%d", &n);printf("%d\n", solve(n));}return 0;
}