#regular rectangular
xo=[int (i) for i in input ().split()]
#x=[[0]*2]*3
x=[[0,0],[0,0],[0,0]]
#rint(x)
for i in range(3):
    for j in range (2):
        k=i*2
        k+=j
        x[i][j]=xo[k]
#z=[[0]*2]*2
z=[[0,0],[0,0]]
nd=0
i=0
while i <3 and nd==0:
    k=i+1
    k%=3
    l=0
    while k!=i:
        for j in range(2):
            z[l][j]=x[k][j]-x[i][j]
     #       print (z)
        k+=1
        l+=1
 #       print(k)
        k%=3
#    print (z)
    if z[0][0]==z[1][1] and z[0][1]==z[1][0]:
   #     print (x)
        nd=1
        for j in range(2):
            x[i][j]+=z[0][j]+z[1][j]
 #           print(x)
    #        print("t")
    i+=1
 #   print(nd)
i-=1
#rint("p")
if nd==0:
    print (-1)
else:
    print(str(x[i][0])+" "+str(x[i][1]))