#include <iostream>
#include<math.h>
using namespace std;
int main()
{
long long n,k;
cin>>n;
cin>>k;
int cnt=0;
for(long long i=2;i<=pow(2,n);i=i*2)
{ cnt++;
if(k%i==i/2)
{
cout<<cnt;
}
}
}
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