2-1-4-2
2-1-4-5
2-1-6-2
2-1-6-5
2-3-4-2
2-3-4-5
2-3-6-2
2-3-6-5
2-4-4-2
2-4-4-5
2-4-6-2
2-4-6-5
3-1-4-2
3-1-4-5
3-1-6-2
3-1-6-5
3-3-4-2
3-3-4-5
3-3-6-2
3-3-6-5
3-4-4-2
3-4-4-5
3-4-6-2
3-4-6-5