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#include<bits/stdc++.h>
using namespace std;
string a1;
int b,a[50005],c[50005],x,lena,lenc;
int main(){
	getline(cin,a1);
	cin>>b;
	lena=a1.length();
	
	for(long long i=0;i<lena;i++){
		a[i+1]=a1[i]-'0';
	}
	for(long long i=1;i<=lena;i++){
		c[i]=(x*10+a[i])/b;
		x=(x*10+a[i])%b;
	}
	lenc=1;
	while(c[lenc]==0&&lenc<lena)	lenc++;
	for(long long i=lenc;i<=lena;i++){
		cout<<c[i];
	}
	cout<<endl;
	return 0;
}