#include<bits/stdc++.h>  
using namespace std;
typedef unsigned long long  ll;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int t;
    cin >> t;
    while (t--)
    {
      ll A,B,count=0;
      cin >> A >> B;
      while(A<B){
        if((A*2)<=B){
          A=A*2;
          count++;
        }
        else{
          count += B - A;
          A = B;
        }
      }
      cout << count << endl;
    }
    return 0; 
}