func_code_string: #include <bits/stdc++.h>   using namespace std;   bool vis[100010];   vector<int> dp[5][100010];   int k, l;   int a[6][6];   int dfs(int now) {     int i, j, x = 0, sum = 0;     for (i = 0; i < now; i++) x = x * 10 + a[now][i];     if (i == l - 1) return dp[1][x].size();     for (i = 0; i < dp[l - now][x].size(); i++) {       int tem = dp[l - now][x][i];       for (j = l - 1; j >= now; j--) {         a[j][now] = a[now][j] = tem % 10;         tem /= 10;       }       sum += dfs(now + 1);     }     return sum;   }   int main() {     int i, j, n;     int m = sqrt(100000.5);     for (i = 2; i <= m; i++)       if (!vis[i]) {         for (j = i * i; j <= 100000; j += i) vis[j] = 1;       }     for (i = 2; i < 100000; i++)       if (!vis[i]) {         int tem = i;         tem /= 10;         for (j = 1; j <= 4; j++) {           dp[j][tem].push_back(i);           tem /= 10;         }       }     scanf( %d , &n);     char str[7];     for (j = 1; j <= n; j++) {       scanf( %s , str);       l = strlen(str);       for (i = 0; str[i] !=   0 ; i++) {         a[0][i] = a[i][0] = str[i] -  0 ;       }       printf( %d n , dfs(1));     }   }   