#include<bits/stdc++.h>
using namespace std;
string s;
int a[110],c[110],x=0,b,i,p;
int main(){
    cin>>s;
    cin>>b;
    for(i=0;i<s.size();i++){
        a[i]=s[i]-'0';}
    for (i=0;i<s.size();i++){
        c[i]=(x*10+a[i])/b;
        x=(x*10+a[i])%b;
    }
    for(i=0;i<s.size();i++){
        if(c[i]!=0){
            p=i;
            break;
        }
    }
    for(i=p;i<s.size();i++){
        cout<<c[i];
    }       
    return 0;
}
/**************************************************************
	Problem: 1604
	User: yangwanning
	Language: C++
	Result: Accepted
	Time:51 ms
	Memory:2076 kb
****************************************************************/