func_code_string: #include <bits/stdc++.h>   const int N = 400 + 10, MOD = 1000000007;   inline void add(int &lhs, long long rhs) { lhs = (lhs + rhs) % MOD; }   int n, f[N][N];   int main() {     scanf( %d , &n);     f[1][0] = f[1][1] = 1;     for (int i = 2; i <= n; ++i) {       for (int x = 0; x <= n; ++x) {         for (int y = 0; x + y <= n; ++y) {           int cur = (long long)f[i - 1][x] * f[i - 1][y] % MOD;           if (!cur) continue;           add(f[i][x + y], cur);           add(f[i][x + y + 1], cur);           if (x) add(f[i][x + y], 2LL * x * cur);           if (y) add(f[i][x + y], 2LL * y * cur);           if (x || y) add(f[i][x + y - 1], (x + y) * (x + y - 1LL) * cur);         }       }     }     printf( %d n , f[n][1]);     return 0;   }   