-th b-p bbb bbc bbe bbh bbn bbo bbp bbt bcb bcc bce bch bcn bco bcp bct be- beb bec bee beh ben beo bep bet bhb bhc bhe bhh bho bhp bht bnb bnc bne bnn bno bnp bnt bob boc boe boh bon boo bop bot bpb bpc bpe bph bpn bpo bpp bpt btb btc bte bth btn bto btp btt c-- cbb cbc cbe cbh cbn cbo cbp cbt ccb ccc cce cch ccn cco ccp cct ce- ceb cec cee ceh cen ceo cep cet ch- chb chc che chh chn cho chp cht cn- cnb cnc cne cnh cnn cno cnp cnt co- cob coc coe coh con coo cop cot cpb cpc cpe cph cpn cpo cpp cpt ctb ctc cte cth ctn cto ctp ctt ebb ebc ebe ebh ebn ebo ebp ebt ec- ecb ecc ece ech ecn eco ect eeb eec eee een eeo eep eet ehb ehc ehe ehh ehn eho ehp eht en- enb enc ene enh enn eno enp ent eo- eob eoc eoe eoh eon eoo eop eot ep- epb epc epe eph epn epo epp ept etb etc ete eth etn eto etp ett hbb hbc hbe hbh hbn hbo hbp hbt hcb hcc hce hch hcn hco hcp hct he- heb hec hee heh hen heo hep het hhb hhc hhe hhh hhn hho hhp hht hnb hnc hne hnh hnn hno hnt hob hoc hoe hoh hon hoo hop hot hpb hpc hpe hph hpn hpo hpp hpt htb htc hte hth htn hto htp htt nbb nbc nbe nbn nbo nbp nbt ncb ncc nce nch ncn nco ncp nct ne- neb nec nee neh nen neo nep net nhb nhc nhe nhh nhn nhp nht nnb nnc nne nnh nnn nno nnp nnt no- nob noc noe noh non noo nop not npb npc npe nph npn npo npp npt ntb ntc nte nth ntn nto ntp ntt ob- obb obc obe obh obn obo obp obt oc- ocb occ och ocn oco ocp oct oeb oec oee oeh oen oeo oep oet ohc ohe ohh ohn oho ohp oht on- onb onc one onh onn ono onp ont oo- oob ooc ooh oon ooo oop oot op- opb opc ope oph opn opo opp opt ot- otb otc ote oth otn oto otp ott p-p pbb pbc pbe pbn pbo pbp pbt pcb pcc pce pch pcn pco pcp pct peb pec pee peh pen peo pep pet phb phc phe phn pho php pht pn- pnb pnc pne pnh pnn pno pnp pnt pob poc poe poh pon poo pop pot ppb ppc ppe pph ppn ppo ppp ppt pt- ptb ptc pte pth ptn pto ptp ptt tbb tbc tbe tbh tbn tbo tbp tbt tcb tcc tce tch tcn tco tcp tct te- teb tec tee teh ten teo tep tet th- thb thc the thh thn tho thp tht tnb tnc tne tnh tnn tno tnp tnt to- tob toc toe toh ton too top tot tpb tpc tpe tph tpn tpo tpp tpt ttb ttc tte tth ttn tto ttp ttt