s = input().strip()
count_ones = s.count('1')

if count_ones == 2:
    print("Yes")
else:
    def check_condition_a(s):
        if '0' not in s:
            return True
        first_zero = s.index('0')
        return all(c == '0' for c in s[first_zero:])
    
    def check_condition_b(s):
        if len(s) == 1:
            return False
        if s[0] == '1' and all(c == '0' for c in s[1:]):
            return False
        return True
    
    if check_condition_a(s):
        if check_condition_b(s):
            print("Yes")
        else:
            print("No")
    else:
        print("No")