local ffi = require("ffi")
local C = ffi.C
ffi.cdef[[
long long atoll(const char*);
]]

local function lltonumber(str)
  return C.atoll(str)
end

local n, q = io.read("*n", "*n", "*l")
for iq = 1, q do
  local s, t = io.read():match("(%d+) (%d+)")
  s = lltonumber(s)
  t = lltonumber(t)
  local z = 0
  while 0LL < t - s do
    local len = t - s
    local jump1 = 1LL
    while s % (2LL * jump1) == 0LL and jump1 * 2LL <= len do
      jump1 = jump1 * 2LL
    end
    z = z + 1
    s = s + jump1
  end
  print(z)
end