from collections import *
from itertools import *
from functools import *
from heapq import *
import sys,math
input = sys.stdin.readline


N,Q = map(int,input().split())

def solve(s,t):
    
    S = []
    T = []
    for i in range(60):
        if (s>>i)&1:
            S.append(i)
        if (t>>i)&1:
            T.append(i)
    if len(S) == 0:
        return len(T)
    while S[-1]==T[-1]:
        S.pop()
        T.pop()
        if len(S)==0:
            break
    if len(S) == 0:
        return len(T)
    cost = T[-1] - S[0] - (len(S) - 1)
    cost +=  (len(T)-1)
    return cost
for _ in range(Q):
    s,t = map(int,input().split())
    print(solve(s,t),flush=True)