1--dh-h-hghgf--hf-gh--gh--h-hjh-h--h--hg-e-ghfe

1--dg-gfed--dc-fgh-h--h--h-gf-gh-h--f

1--d-c-a-cd--dc-de-fd-d--d--d-de-fed-c

1--ghj-kjh--jh-g--gh-j--j-k-l-k