func_code_string: #include <bits/stdc++.h>   using namespace std;   const double pi = acos(-1.0);   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     int t;     t = 1;     while (t--) {       long long int n;       cin >> n;       long long int a[n];       for (int i = 0; i < n; i += 1) cin >> a[i];       long long int pre[n];       pre[0] = a[0];       for (long long int i = 1; i < n; i += 1) {         pre[i] = a[i];         pre[i] += pre[i - 1];       }       long long int q;       cin >> q;       for (long long int i = 0; i < q; i += 1) {         long long int x, y;         cin >> x >> y;         x -= 1, y -= 1;         long long int tmp = pre[y] - pre[x] + a[x];         tmp = tmp / 10;         cout << tmp <<   n ;       }     }   }   