#include <bits/stdc++.h>
#ifdef LOCAL
#include "./debug.cpp"
#else
#define debug(...)
#define print_line
#endif
using namespace std;
using ll = long long;

int main() {
    int T;
    cin >> T;
    while (T--) {
        ll N, fi, se;
        scanf("%lld %lld.%lld", &N, &fi, &se);
        debug(N, fi, se);

        if (se == 0) {
            cout << N << endl;
            continue;
        }
        if (N < 1000 && 1000 % se > 1) {
            cout << 0 << endl;
            continue;
        }

        ll sh = 1000 / se;
        ll ans = N / sh;
        ll now = 1000;
        while (now < 1e15) {
            if (now <= N && now % sh != 0) ans++;
            now *= 10;
        }

        cout << ans << endl;
    }
}