#include<bits/stdc++.h>
using namespace std;
int main(){
	long long b;
	int a[100],x=0,l,c[100];
	string s;
	getline(cin,s);
	cin>>b;
	for(int i=0;i<s.size();i++){
		a[i]=s[i]-'0';
	}
	for(int i=0;i<s.size();i++){
		x*=10;
		a[i]+=x;
		x=a[i]%b;
		c[i]=a[i]/b;
		//cout<<a[i]/b;
	}
	for(int i=0;i<s.size();i++){
		if(c[i]!=0){
			l=i;
			break;
		} 
	}
	for(;l<s.size();l++) cout<<c[l];
	return 0;
}

/**************************************************************
	Problem: 1604
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:50 ms
	Memory:2076 kb
****************************************************************/