def solve():
    N,K=map(int,input().split())

    M=N*(N+1)//2

    if K==M:
        return 0

    S={0}; s=0
    for a in range(1,N+1):
        s+=a
        if s-(M-K) in S:
            return 1
        S.add(s)

    return 2
#==================================================
print(solve())