func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int a;     cin >> a;     while (a--) {       int b, c;       cin >> b >> c;       int n = abs(b - c);       n = n / 5 + (n % 5) / 2 + (n % 5) % 2;       cout << n <<   n ;     }     return 0;   }   