x,y,a,b,c,d = map(int,input().split())
a -= x
b -= y
c -= x
d -= y
if (c,d) in [(-b,a),(b,-a)]:
    print(x+a+c,y+b+d)
elif (c-d,c+d) == (a,b):
    print(x-d,y+c)
elif (c+d,-c+d) == (a,b):
    print(x+d,y-c)
elif (a-b,a+b) == (c,d):
    print(x-b,y+a)
elif (a+b,-a+b) == (c,d):
    print(x+b,y-a)
else:
    print(-1)