#include<iostream>
#include<cstdio>
#include<string>
#include<cstring>
#include<algorithm>
#include<iomanip>
const int maxn=1010;
char str1[maxn],str2[maxn];
int a[maxn],c[maxn],n1,n2,t;
long long g,b;
using namespace std;
void input()
{
scanf("%lld%s",&b,&str1);
n1=strlen(str1);
t=b;
while(t)
{
t/=10;
n2++;
}
for(int i=maxn-n1;i<=maxn;i++)
a[i]=str1[i+n1-maxn]-'0';
}
void divd()
{
int i,j,s;
for(i=maxn-n1;i<maxn;i++)
{
s=g*10+a[i];
a[i]=s/b;
g=s%b;
}
}
void output()
{
if(g==0)
cout<<b;
else
cout<<g;
}
int main()
{
input();
divd();
output();
}