import sys
input = sys.stdin.readline

n, m = map(int, input().split())

t = n * (n + 1) // 2 - m
if(t == 0):
	print(0)
	exit(0)

l = r = 1
s = 0
while(True):
	if(s == t):
		print(1)
		exit(0)
	elif(s < t):
		if(r > n):
			print(2)
			exit(0)
		s += r
		r += 1
	else:
		s -= l
		l += 1