/* -*- coding: utf-8 -*-
 *
 * 1742.cc:  No.1742 Binary Indexed Train - yukicoder
 */

#include<cstdio>
#include<algorithm>
 
using namespace std;

/* constant */

/* typedef */

typedef long long ll;

/* global variables */

/* subroutines */

/* main */

int main() {
  int n, qn;
  scanf("%d%d", &n, &qn);

  while (qn--) {
    ll si, ti;
    scanf("%lld%lld", &si, &ti);

    int c = 0;
    while (si < ti) {
      if (si & 1) c++, si++;
      if (ti & 1) c++, ti--;
      si >>= 1, ti >>= 1;
    }
    printf("%d\n", c);
  }
  return 0;
}