import sys
r1,r2=map(int,input().split())
c1,c2=map(int,input().split())
d1,d2=map(int,input().split())
for i in range(1,21):
    for j in range(1,21):
        for k in range(1,21):
            for l in range(1,21):
                if(i+j==r1 and i+k==c1 and k+l==r2 and j+l==c2 and i+l==d1 and j+k==d2 and i!=j and j!=k and k!=l):
                    print(i,j)
                    print(k,l)
                    f=1
                    sys.exit()                    
                    
print(-1)