#include<bits/stdc++.h>
#include <atcoder/all>
#ifdef LOCAL
#include <debug_print.hpp>
#define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#define debug(...) (static_cast<void>(0))
#endif
using namespace atcoder;
using mint=modint998244353;
using namespace std;
using ll=long long;
using ld=long double;
using ul=unsigned long long;
int dx[9] = {0, 1, -1, 0, -1, -1, 1, 1, 0};
int dy[9] = {1, 0, 0, -1, -1, 1, -1, 1, 0};
int main(){
    int N,Q;
    cin>>N>>Q;
    while(Q--){
        ll s,t;
        cin>>s>>t;
        int cnt=0;
        while(s!=t){
            ll p=s,k=1;
            while(p%2==0&&(t-s)/2>=k)k*=2,p/=2;
            s=s+k;
            cnt++;
        }
        cout<<cnt<<endl;
    }
}