#include <bits/stdc++.h>

using namespace std;
#define int long long
#define all(x) x.begin(), x.end()
#define app push_back
#ifdef LOCAL
#define debug(...) [](auto...a){ ((cout << a << ' '), ...) << '\n';}(#__VA_ARGS__, ":", __VA_ARGS__)
#else
#define debug(...)
#endif
int32_t main()
{
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int t;cin>>t;
    while(t--)
    {
        int n;string s;cin>>n>>s;
        s.erase(find(all(s),'.'));int s1=stoi(s);
        int res=0;
        for(int i=1;i<=1000 && i<=n;++i)
        {
            int low=s1*i;
            int up=(s1+1)*i;
            //debug(low,up);
            bool ok=0;
            if((up-1)/1000>(low-1)/1000)
            {
                ok=1;
            }
            res+=ok;
        }
        res+=max(0LL,n-1000);
        cout<<res<<'\n';
    }
    return 0;
}