#include <bits/stdc++.h>   using namespace std;   int main() {     int n, m, ans = 0;     cin >> n >> m;     while (n != m) {       if (n < m) {         if (m % 2 == 0)           m /= 2, ans++;         else           m++, ans++;       } else {         ans++;         m++;       }     }     cout << ans;   }   