include <bits/stdc++.h>

using namespace std; int a[6000], c[6000];

int main() {

int b;
string s;
cin >> s >> b;
int la = s.size();
int lc = la;
for (int x = 0; x < la; x++)
	a[la - x] = s[x] - '0';
int y = 0;
for (int x = lc; x >= 1; x--) {
	c[x] = (y * 10 + a[x]) / b;
	y = (y * 10 + a[x]) % b;
}
while (c[lc] == 0 && lc > 0)
	lc--;
for (int x = lc; x >= 1; x--)
	cout << c[x];
return 0;

}