r1, r2 = map(int, raw_input().split())
c1, c2 = map(int, raw_input().split())
d1, d2 = map(int, raw_input().split())
for a in range(1, 10):
    for b in range(1, 10):
        for c in range(1, 10):
            for d in range(1, 10):
                if a+b==r1 and a+c==c1 and b+d==c2 and c+d==r2 and a+d==d1 and b+c==d2 and len(set([a,b,c,d]))==4:
                    print "%d %d\n%d %d" %(a, b, c, d)
                    exit(0)
print -1
