X1,Y1,X2,Y2,X3,Y3 = map(int, input().split())

if X1 == X2 == X3 or Y1 == Y2 == Y3:
    print(-1)
elif X1 == X2:
    if abs(Y1 - Y2) == abs(X1 - X3):
        if Y1 == Y3:
            print(X3, Y2)
        elif Y2 == Y3:
            print(X3, Y1)
        else:
            print(-1)
    else:
        print(-1)
elif X2 == X3:
    if abs(Y2 - Y3) == abs(X2 - X1):
        if Y2 == Y1:
            print(X1, Y3)
        elif Y3 == Y1:
            print(X1, Y2)
        else:
            print(-1)
    else:
        print(-1)
elif X3 == X1:
    if abs(Y3 - Y1) == abs(X2 - X1):
        if Y3 == Y2:
            print(X2, Y1)
        elif Y1 == Y2:
            print(X2, Y3)
        else:
            print(-1)
    else:
        print(-1)
else:
    X4 = X2 + X3 - X1
    Y4 = Y2 + Y3 - Y1
    XD4 = abs(max(X1, X2, X3, X4) - min(X1, X2, X3, X4))
    YD4 = abs(max(Y1, Y2, Y3, Y4) - min(Y1, Y2, Y3, Y4))
    
    X5 = X1 + X3 - X2
    Y5 = Y1 + Y3 - Y2
    XD5 = abs(max(X1, X2, X3, X5) - min(X1, X2, X3, X5))
    YD5 = abs(max(Y1, Y2, Y3, Y5) - min(Y1, Y2, Y3, Y5))
    
    X6 = X1 + X2 - X3
    Y6 = Y1 + Y2 - Y3
    XD6 = abs(max(X1, X2, X3, X6) - min(X1, X2, X3, X6))
    YD6 = abs(max(Y1, Y2, Y3, Y6) - min(Y1, Y2, Y3, Y6))
    
    if XD4 == YD4:
        print(X4, Y4)
    elif XD5 == YD5:
        print(X5, Y5)
    elif XD6 == YD6:
        print(X6, Y6)
    else:
        print(-1)