from itertools import permutations


def test(a):
    if a[0][1] + a[2][1] == a[1][1] + a[3][1] and a[0][0] == a[2][0] and a[1][0] == a[3][0]:
        return True
    if a[0][1] + a[1][1] + a[2][1] == a[3][1] and a[0][0] == a[1][0] == a[2][0]:
        return True
    if a[0][0] == a[1][0] and a[0][1] + a[1][1] == a[2][1] == a[3][1]:
        return True
    if a[0][1] == a[1][1] == a[2][1] == a[3][1]:
        return True
    if a[0][1] + a[1][1] == a[3][1] and a[1][1] == a[2][1] and a[0][0] == a[1][0] + a[2][0]:
        return True
    return False


a = [list(map(int, input().split())) for _ in range(4)]

for swap in range(2**4):
    b = [i.copy() for i in a]
    for i in range(4):
        if swap & (1 << i):
            b[i] = b[i][::-1]

    for i in permutations(b):
        print(i)
        if test(i):
            print(1)
            exit()
print(0)