#include <iostream>
#include "stdio.h"
#include <cmath>
using namespace std;

int main(int argc, const char * argv[]) {
    freopen("division.in", "r", stdin);
    freopen("division.out", "w", stdout);
    int a, b = 0, q = 0;
    cin >> a >> b;

        if (a >= 0 && b > 0) {
            q = a / b;
        } else if (a < 0 && b > 0) {
            if (a % b == 0)
                q = -1* (abs(a) / abs(b));
            else
                q = -1*(abs(a) / abs(b)) - 1;
        } else if (a > 0 && b < 0) { //да
            q = -1*(abs(a) / abs(b));
        } else if (a < 0 && b < 0) {
            if (a % b == 0)
                q = (abs(a) / abs(b));
            else
            q = abs(a) / abs(b) + 1;
        } else if (b == 0) {
            cout << "Na nol' delit' nel'zya!!!";
        }
        if (a == 0)
            q = 0;
        if (b != 0)
            cout << q;

    return 0;
}