func_code_string: #include <bits/stdc++.h>   using namespace std;   int arr[10] = {6, 2, 5, 5, 4, 5, 6, 3, 7, 6};   void solve() {     int d, x;     int a, b;     cin >> a >> b;     int ans = 0;     for (int i = a; i <= b; i++) {       x = i;       while (x) {         d = x % 10;         x = x / 10;         ans += arr[d];       }     }     cout << ans << endl;   }   int main() {     int t = 1;     while (t--) {       solve();     }   }   