bbb bbc bbe bbh bbl bbs bcb bcc bce bch bcl bcs be- beb bec bee beh bel bes bhb bhc bhe bhh bhl bhs blb blc ble blh bll bls bsb bsc bse bsh bsl bss c-- cbb cbc cbe cbh cbl cbs ccb ccc cce cch ccl ccs ce- ceb cec cee ceh cel ces ch- chb chc che chh chl chs cl- clb clc cle clh cll cls csb csc cse csh csl css ebb ebc ebe ebh ebl ebs ec- ecb ecc ece ech ecl ecs eeb eec eee eel ees ehb ehc ehe ehh ehl ehs elb elc ele elh ell els es- esb esc ese esh esl ess hbb hbc hbe hbh hbl hbs hcb hcc hce hch hcl hcs he- heb hec hee heh hel hes hhb hhc hhe hhh hhl hhs hlb hlc hle hlh hll hls hsb hsc hse hsh hsl hss lbb lbc lbe lbh lbl lbs lcb lcc lce lch lcl lcs leb lec lee leh lel les lhb lhc lhh lhs llb llc lle lll lls lsb lsc lse lsh lsl lss sbb sbc sbe sbh sbl sbs scb scc sce sch scl scs se- seb sec see seh sel ses sh- shb shc she shh shl shs slb slc sle slh sll sls ss- ssb ssc sse ssh ssl sss