#include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     long long int i, j, a, b, ans;     for (i = 1; i <= t; i++) {       cin >> a >> b;       ans = 0;       while ((a + b + ans * (ans + 1) / 2) % 2 != 0 ||              (a + b + ans * (ans + 1) / 2) < 2 * max(a, b)) {         ans++;       }       cout << ans << endl;     }   }   