def odd(x=500):
    for i in range(x):
        if i%2 == 1:
            print(i)


def even(x=500):
    for i in range(x):
        if i%2 == 0:
            print(i)


def indicator(x=500):
    for i in range(x):
        if i%2 == 0:
            print(1)
        else:
            print(-1)


# odd(10)
# even(10)
indicator(10)