def iin(): return int(eval(input()))

def nl(): return list(map(int, input().split()))



a, b = nl()

print(('No' if a * b % 2 == 0 else 'Yes'))
a, b = list(map(int, input().split()))

print(('Yes' if a * b % 2 == 1 else 'No'))
def iin():
    return int(eval(input()))


def nl():
    return list(map(int, input().split()))


a, b = nl()
print(("No" if a * b % 2 == 0 else "Yes"))

a, b = list(map(int, input().split()))
print(("Yes" if a * b % 2 == 1 else "No"))

-def iin(): -    return int(eval(input())) - - -def nl(): -    return list(map(int, input().split())) - - -a, b = nl() -print(("No" if a * b % 2 == 0 else "Yes")) +a, b = list(map(int, input().split())) +print(("Yes" if a * b % 2 == 1 else "No"))