1 3 4 8 - BAD (3,4,5)
1 4 7 8 - BAD (7 + 8 = 15)
1 6 7 8 - BAD (7 + 8 = 15)
2 3 4 9 - BAD (9 + 4 + 2 = 15)
2 3 6 9 - BAD (9 + 6 = 15)
2 4 7 9 - BAD (9 + 4 + 2 = 15)
2 6 7 9 - BAD (9 + 6 = 15)
3 4 8 9 - BAD (3,5,5)
3 6 8 9 - BAD (9 + 6 = 15)
4 7 8 9 - BAD (7 + 8 = 15)
6 7 8 9 - BAD (9 + 6 = 15)