func_code_string: #include <bits/stdc++.h>   using namespace std;   int32_t main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     long long int t, a, b, diff, n;     cin >> t;     while (t--) {       cin >> a >> b;       diff = abs(a - b);       n = ceil((-1 + sqrt(1 + 8 * diff)) / 2);       if (((n + 1) / 2) % 2 != diff % 2) {         if (n % 2)           n += 2;         else           n++;       }       if (n == -0) n = 0;       cout << n <<   n ;     }   }   