func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAXM = 500 + 5;   const int MAXN = 500 + 5;   const int MAXQ = 300 + 5;   const int MAXK = 800 + 5;   const int P = 5;   const int MOD = 1e9 + 7;   int n, m, q, a[MAXN][MAXK];   int inv[P], ans = 1;   char buf[MAXM];   int main() {     for (int i = 0; i < P; i++) inv[i] = i * i * i % P;     scanf( %d%d , &n, &m);     for (int i = 1; i <= n; i++) {       scanf( %s , buf + 1);       for (int j = 1; j <= m; j++) a[j][i] = buf[j] -  a ;     }     scanf( %d , &q);     for (int i = 1; i <= q; i++) {       scanf( %s , buf + 1);       for (int j = 1; j <= m; j++) a[j][i + n] = buf[j] -  a ;     }     int cur = 1, r = 0;     for (int i = 1; i <= m && cur <= n; i++) {       while (cur <= n) {         int t = i;         for (int j = i + 1; j <= m; j++)           if (a[j][cur]) t = j;         for (int j = 1; j <= n + q; j++) swap(a[i][j], a[t][j]);         if (a[i][cur]) break;         cur++;       }       if (cur == n + 1) break;       for (int j = cur + 1; j <= n + q; j++)         a[i][j] = a[i][j] * inv[a[i][cur]] % P;       a[i][cur] = 1;       for (int j = i + 1; j <= m; j++) {         for (int k = cur + 1; k <= n + q; k++) {           a[j][k] -= a[j][cur] * a[i][k] % P;           if (a[j][k] < 0) a[j][k] += P;         }         a[j][cur] = 0;       }       r++;     }     for (int i = 1; i <= n - r; i++) ans = ans * 5ll % MOD;     for (int i = 1; i <= q; i++) {       int x = ans;       for (int j = 1; j <= m; j++) {         bool flg = 1;         for (int k = 1; k <= n; k++) flg &= (a[j][k] == 0);         flg &= (a[j][n + i] > 0);         if (flg) x = 0;       }       printf( %d n , x);     }     return 0;   }   