#include<bits/stdc++.h>
using namespace std;
unsigned long long n,m,i=0;
int main(){
	cin>>n>>m;
	unsigned long long k=n;
	while(k<pow(2,m)){
		unsigned long long l=k;
		k=k*k;
		k=k/2;
		i++;
		if(k==l){
			cout<<"inf";
			return 0;
		}
	}
	cout<<i;
}

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