N,K=map(int,input().split())
ans=2
Sum,Max=0,0
for i in range(1,N+1):
    Max+=i
d=Max-K
for i in range(1,N+1):
    Sum+=i
    if Sum==d:
        ans=1
        break
    if Sum>d:
        break
    if (d-Sum)%i==0 and (d-Sum)//i+i<=N:
        ans=1
        break
print(ans)