#include <iostream>
using namespace std;
typedef long long ll;

int main()
{
    int n, q;
    cin >> n >> q;
    while(q--){
        ll s, t;
        cin >> s >> t;
        int ans = 0;
        for(int i = 0; i <= 60; i++){
            if(((s >> i) & 1) && s + (1ll << i) <= t){
                s += (1ll << i);
                ans++;
            }
        }
        for(int i = 60; i >= 0; i--){
            if(s + (1ll << i) <= t){
                s += (1ll << i);
                ans++;
            }
        }
        cout << ans << endl;
    }
}