#include <bits/stdc++.h>   using namespace std;   int main(int argc, char const *argv[]) {     int n, q, counts = 0;     cin >> n;     int s[n];     for (int i = 0; i < n; i++) cin >> s[i];     cin >> q;     int l[q], r[q];     for (int i = 0; i < q; i++) cin >> l[i] >> r[i];     int sums[n + 1];     sums[0] = 0;     for (int i = 1; i < n + 1; i++) sums[i] = sums[i - 1] + s[i - 1];     for (int i = 0; i < q; i++)       cout << (sums[r[i]] - sums[l[i] - 1]) / 10 << endl;     return 0;   }   