#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <queue>
#include <map>
using namespace std;
using i32 = int32_t;
using u32 = uint32_t;
using i64 = int64_t;
using u64 = uint64_t;
#define rep(i,n) for(int i=0; i<(n); i++)


int main(){
    int N, Q; cin >> N >> Q;

    rep(i, Q) {
        i64 S, T; cin >> S >> T;
        i64 ans = 0;
        while (S != T) {
            ans += S % 2;
            ans += T % 2;
            S = (S + 1) / 2;
            T = T / 2;
        }
        cout << ans << "\n";
    }
    return 0;
}




struct ios_do_not_sync {
    ios_do_not_sync() {
        ios::sync_with_stdio(false);
        cin.tie(nullptr);
    }
} ios_do_not_sync_instance;