1--l-l-g--j-k-l-k--lm-l--kkl-k-

1--c--d-c-d--e-e--fedc-d-de--d-c-

1--g-g-h-h--g-g--g-g-

1--d-e-g-g--g-hj-h-h--h-

1--d--dd-f--g-f-gh-h--h-hkk-h-

1--d--efg-g--g--gh-g-g--g-g-