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

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    vector<vector<int>> ok(100001);
    for(int i=1; i<=1000; i++){
        for(long long s=0; s<=i*100; s++){
            long long now = s*1000/i;
            ok.at(now).push_back(i);
        }
    }

    int T; cin >> T;
    while(T--){
        long long N; cin >> N;
        double S; cin >> S;
        long long answer = max(0LL,N-999),T = S*1000;
        N = min(999LL,N);

        for(auto n : ok.at(T)){
            if(n > N) break;
            answer++;
        }
        cout << answer << endl;
    }
}