#include <bits/stdc++.h> using namespace std; int main() { int n,k,i,s=0; cin>>n>>k; if(k%2==0) { i=k/2; s++; } else { i=k-1; s++; } while(i>=n) { if(i%2==0) { i=i/2; s++; } else { i=i-1; s++; } } s=s+(n-i); cout<<s<<endl; return 0; }