#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int T;
    cin >> T;
    while(T--){
        string s;
        ll n = 0, m;
        cin >> s >> m;
        for(int i = 0; i < s.size(); i++){
            n = (n * 10 + (s[i] - '0')) % m;
        }
        cout << ((n * (n + 1)) / 2) % m << '\n';
    }
}