n = list(input())
if n.count("1") == 2:
    print('Yes')
    exit(0)
elif n.count("1") == 1:
    print('No')
    exit(0)
else:
    c = n.count("0")
    for i in range(1,c+1):
        if n[-i] != '0':
            print('No')
            exit(0)
    print('Yes')