#include<bits/stdc++.h>
using namespace std;
int main(){
    int A,B,c;
    int N = 0;
    
    c=0;
    
    cin>>A>>B;
    N=A*N+B;
    while(N==0){
        N=A*N+B;
        c++;

        if(N==0){
            
        }

    }
    cout<<c<<endl;

}