from collections import Counter
x1,y1,x2,y2,x3,y3=map(int,input().split())

def check(x4,y4):
    A=[]
    A.append((x1-x2)**2+(y1-y2)**2)
    A.append((x1-x3)**2+(y1-y3)**2)
    A.append((x1-x4)**2+(y1-y4)**2)
    A.append((x2-x3)**2+(y2-y3)**2)
    A.append((x2-x4)**2+(y2-y4)**2)
    A.append((x3-x4)**2+(y3-y4)**2)

    C=Counter(A)

    MAX=max(C.keys())
    MIN=min(C.keys())

    if MAX!=MIN*2:
        return False

    L=list(C.values())
    if L==[2,4] or L==[4,2]:
        #print(A,C)
        return True
    else:
        return False

for x4 in range(-300,301):
    for y4 in range(-300,301):
        if check(x4,y4)==True:
            print(x4,y4)
            exit()

print(-1)