from sys import stdin


def main():
    input = lambda: stdin.readline()[:-1]
    A, B = map(int, input().split())

    a = {1, A}
    for i in range(2, int(A ** 0.5) + 1):
        d, m = divmod(A, i)
        if not m:
            a.add(i)
            a.add(d)
    b = {1, B}
    for i in range(2, int(B ** 0.5) + 1):
        d, m = divmod(B, i)
        if not m:
            b.add(i)
            b.add(d)
    x = a & b
    n = len(x)
    if n % 2:
        print('Odd')
    else:
        print('Even')


main()