In summary,

1-1 (equal)
1-2 (aisle on left hand side)
2-2 (equal)
2-3 (aisle on left hand side)
3-3 (equal)
1-2-1 (equal)
2-1-2 (aisle in middle)
2-2-2 (aisle in middle)
2-3-2 (aisle in middle)
2-4-2 (equal)
2-5-2 (aisle in window)
3-3-3 (aisle in middle)
3-4-3 (aisle in middle)