1--f-hk-kl--h--hk-lkl-jkjh--hjkjgf-ghg--f-ghgh-h-kj-klk

1--c-egf-df-efdc--defed-f-f-f--fdef--e-egf

1--f-fg-g--g--g-gh-g--g-f

1--e-d-e--g-gh--h--h--g-h