#include <iostream>
using namespace std;

int main() {
    int n, w;
    cin >> n >> w;
    cout << n/w << endl;

    return 0;
}
#include <iostream>

using namespace std;

//ios::sync_with_stdio(0);
//cin.tie(0);

int main() {
    int a, b;
    cin >> a >> b;
    int mn = min(a, b);
    int mx = max(a, b);
    string ans = mn + 3 > mx ? "Yes" : "No";
    cout << ans;
    return 0;
}