func_code_string: #include <bits/stdc++.h>   using namespace std;   const int INF = 0x3f3f3f3f;   const long long LINF = 0x3f3f3f3f3f3f3f3fLL;   const double EPS = 1e-8;   const int MOD = 1000000007;   const int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1};   int main() {     cin.tie(0);     ios::sync_with_stdio(false);     int n;     cin >> n;     vector<long long> s(n + 1, 0);     for (int i = (1); i < (n + 1); ++i) cin >> s[i];     for (int i = (1); i < (n + 1); ++i) s[i] += s[i - 1];     int q;     cin >> q;     while (q--) {       int l, r;       cin >> l >> r;       --l;       --r;       cout << (s[r + 1] - s[l]) / 10 <<   n ;     }     return 0;   }   