func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, sum = 0, tmpsum = 0;     cin >> n;     int v[2][n];     for (int i = 0; i < n; i++) cin >> v[0][i] >> v[1][i];     for (int i = 0; i < n; i++) {       sum += v[1][i];       sum -= v[0][i];       if (sum >= tmpsum) tmpsum = sum;     }     cout << tmpsum;     return 0;   }   