/*
 */
#include<bits/stdc++.h>

#ifdef t9unkubj
#define dbg(x) cout<<__LINE__<<" "<<#x<<":="<<x<<endl;
#else 
#define dbg(x) t9unkubj
#endif

using namespace std;
long long modinv(long long a, long long m) {
    long long b = m, u = 1, v = 0;
    while (b) {
        long long t = a / b;
        a -= t * b; swap(a, b);
        u -= t * v; swap(u, v);
    }
    u %= m; 
    if (u < 0) u += m;
    return u;
}
int main(){
	int t;
	cin>>t;
	for(int _=0;_<t;_++){
		string n;
		int m;
		cin>>n>>m;
		long long N=0;
		reverse(n.begin(),n.end());
		long long base=1;
		for(auto x:n){
			N+=(long long)(x-'0')*base;
			N%=m;
			base*=10;
			base%=m;
		}
		if(m%2==0)cout<<(N*(N+1)/2)%m<<endl;
		else  cout<<(N*(N+1))%m*modinv(2,m)%m<<endl;
	}
}