#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 *= 10;
            n += s[i] - '0';
            n %= 2 * m;
        }
        ll ans = n * (n + 1);
        while(ans % 2 != 0) ans += m;
        ans /= 2;
        ans %= m;
        cout << ans << '\n';
    }
}