//只是高精除单精
#include<iostream>
#include<cstdio>
#include<cmath>
#include<cstring>
using namespace std;
char e[1001];
int n,a[1001],c[1001];
int main()
{
    scanf("%s",e);
    int k=strlen(e);
    scanf("%d",&n);
    for(int i=k;i>=k;i--)
    {a[i]=e[k-i]-48;
    }
    for(int i=k;i>=1;i--)
    { 
      c[i]=a[i]/n;
      a[i]%=n;
      a[i-1]+=a[i]*10;
    }
    while(c[k]==0&&k>1)k--;
    for(int i=k;i>=1;i--)
    printf("%d",c[i]);
    
}