import itertools
import sys

arr = [0, 1, 2]

tmp = list(map(int, input().split()))
x = []
y = []

for i in range(len(tmp)):
    if i % 2 == 0:
        x.append(tmp[i])
    else:
        y.append(tmp[i])
        
for v in itertools.permutations(arr):
    dy = y[v[1]] - y[v[0]]
    dx = x[v[1]] - x[v[0]]
    if y[v[2]] == y[v[1]] + dx and x[v[2]] == x[v[1]] - dy:
        y3 = y[v[2]] - dy
        x3 = x[v[2]] - dx
        print(x3, y3)
        sys.exit()
        
print("-1")