#include <bits/stdc++.h>

using namespace std;
int F(int x) {
    if (x == 0) return 0;
    return F(x / 10) * 2 + x % 10;
}
int fa;
int main() {
    int T;
    int num = 1;
    cin >> T;

    while (T--) {
        int x, y;
        cin >> x >> y;
        fa = F(x);
        int cnt = 0;
        for (int i = 0; i <= y; i++)
            if (F(i) <= fa) cnt++;

        printf("Case #%d: %d\n", num++, cnt);
    }
    return 0;
}