from math import sqrt

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

SUM=0
ANS=2
for i in range(N,-1,-1):
    rest=K-SUM
    if rest<0:
        continue

    x=round((-1+sqrt(1+8*rest))/2)
    if x*(x+1)==rest*2 and x<i:
        ANS=1

    SUM+=i

print(ANS)