(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: continue
                if c + d != r2: continue
                if a + c != c1: continue
                if b + d != c2: continue
                if a + d != d1: continue
                if b + c != d2: continue
                print a, b
                print c, d
                quit()
print -1
