func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     while (t--) {       int a, b;       cin >> a >> b;       if (a == b) {         cout << 0 <<   n ;         continue;       }       if (a - b > 5) {         int answ = 0;         int cant = (a - b) / 5;         answ = answ + cant;         a = a - cant * 5;         if (a - b == 1 or a - b == 2)           answ = answ + 1;         else {           if (a != b) answ = answ + 2;         }         cout << answ <<   n ;         continue;       }       if (b - a > 5) {         int answ = 0;         int cant = (b - a) / 5;         a = a + cant * 5;         answ = answ + cant;         if (b - a == 1 or b - a == 2)           answ = answ + 1;         else {           if (a != b) answ = answ + 2;         }         cout << answ <<   n ;         continue;       }       if (abs(a - b) == 1 or abs(a - b) == 2 or abs(a - b) == 5)         cout << 1 <<   n ;       else         cout << 2 <<   n ;     }     return 0;   }   