func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long al;     cin >> al;     while (al--) {       long long b, c;       cin >> b >> c;       if ((abs(b - c)) % 10 == 0)         cout << abs(b - c) / 10 <<   n ;       else {         b = abs(b - c);         cout << b / 10 + 1 <<   n ;       }     }   }   