#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0;i < (n);i++)
using ll = long long;
using P =pair<int,int>;
ll LEN = 1LL << 60;
int main(){
  int n,q;
  cin >> n >> q;
  vector<int> ans;
  rep(i,q){
    ll s,t;
    cin >> s >> t;
    int res = 0;
    while(s < t){
      if(s & 1) res++,s++;
      if(t & 1) res++,t--;
      s /= 2;
      t /= 2;
    }
    ans.push_back(res);
  }
  rep(i,q){
    cout << ans[i] << endl;
  }
  return 0;
}