func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 100000 + 5;   int g[10][10];   int a[5];   int ans;   int cal() {     int sum = 0;     for (int i = 0; i < 5; ++i) {       for (int j = i; j < 4; j += 2) sum += g[a[j]][a[j + 1]] + g[a[j + 1]][a[j]];     }     return sum;   }   int main() {     for (int i = 0; i < 5; ++i)       for (int j = 0; j < 5; ++j) cin >> g[i][j];     for (int i = 0; i < 5; ++i) a[i] = i;     ans = -1;     do {       ans = max(ans, cal());     } while (next_permutation(a, a + 5));     cout << ans << endl;   }   