import itertools
a,b,c,d,e,f = map(int,input().split())
XY = [[a,b],[c,d],[e,f]]

for l in itertools.permutations(range(3),3):
    
    x1,y1 = XY[l[0]]
    x2,y2 = XY[l[1]]
    x3,y3 = XY[l[2]]

    dx,dy = x2-x1,y2-y1
    if x1 - dy != x3 or y1+dx != y3:
        continue
    x4 = x3+dx
    y4 = y3+dy

    print(x4,y4)
    exit()
print(-1)