func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int m[] = {6, 2, 5, 5, 4, 5, 6, 3, 7, 6};     long a, b;     cin >> a;     cin >> b;     int count = 0;     int i;     long x;     do {       x = a;       while (x >= 10) {         i = x % 10;         count += m[i];         x /= 10;       }       count += m[x];       a++;     } while (a <= b);     cout << count;     return 0;   }   