def main():
  from sys import stdin
  readline=stdin.readline
  #n = int(readline())
  #s = input()
  n,z = map(int, readline().split())
  #A = list(map(int, readline().split()))
  if n >= 3:
    print('No')
  elif n == 1:
    if z >= 2:
      print('Yes')
    else:
      print('No')
  else:
    st = set(y for y in range(1, 10**6))
    z *= z
    for x in range(1, 10**6):
      x *- x
      if z-x in st:
        print('Yes')
        break
    else:
      print('No')

  
  
main()