func_code_string: #include <bits/stdc++.h>   using namespace std;   const int INF = 0x3f3f3f3f;   const double PI = acos(-1.0);   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     const int N = 1e2 + 10;     int n, m;     int v[N][2 * N];     cin >> n >> m;     for (int i = 0; i < n; i++) {       for (int j = 0; j < 2 * m; j++) {         cin >> v[i][j];       }     }     int ans = 0;     for (int i = 0; i < n; i++) {       for (int j = 0; j < 2 * m; j += 2) {         if (v[i][j] == 1 or v[i][j + 1] == 1) ans++;       }     }     cout << ans << endl;     return 0;   }   