import sys

sys.setrecursionlimit(10000)

A,B = input().split()
A = int(A)
B = int(B)

def dp(a, b):
    if (a == 1 and b != 0) or b == 1 or a == b or a == 0:
        return 1
    
    elif a == b+1 or b == 0:
        return 0
    
    elif a > b+1 and a%b != 0:
        c = max(min(dp(a%b,b-1),dp(a%b,b%(a%b))),dp(a-1,b-1))
        return c
    
    elif a > b+1 and a%b == 0:
        return 1
    
    elif a < b:
        e = min(dp(a-1,b%(a-1)),dp(a-1,b-1))
        return e
print(dp(A,B))