-ic b-p bbb bbc bbh bbi bbn bbo bbp bbr bbs bcb bcc bch bci bcn bco bcp bcr bcs bhb bhc bhh bhi bho bhp bhr bhs bi- bib bic bih bii bin bio bip bir bis bnb bnc bni bnn bno bnp bnr bns bob boc boh boi bon boo bop bor bos bpb bpc bph bpi bpn bpo bpp bpr bps brb brh bri brn bro brp brr brs bsb bsc bsh bsi bsn bso bsp bsr bss c-- cbb cbc cbh cbi cbn cbo cbp cbr cbs ccb ccc cch cci ccn cco ccp ccr ccs ch- chb chc chh chi chn cho chp chr chs ci- cib cic cih cii cin cio cip cir cis cn- cnb cnc cnh cni cnn cno cnp cnr cns co- cob coc coh coi con coo cop cor cos cpb cpc cph cpi cpn cpo cpp cpr cps crb crc crh cri crn cro crp crr crs csb csc csh csi csn cso csp csr css h-i hbb hbc hbh hbi hbn hbo hbp hbr hbs hcb hcc hch hci hcn hco hcp hcr hcs hhb hhc hhh hhi hhn hho hhp hhr hhs hib hic hih hii hin hio hip hir his hnb hnc hnh hnn hno hns hob hoc hoh hoi hon hoo hop hor hos hpb hpc hph hpi hpn hpo hpp hpr hps hr- hrb hrc hrh hri hrn hro hrp hrr hrs hsb hsc hsh hsi hsn hsp hsr hss ibb ibc ibh ibi ibn ibo ibp ibr ibs icb icc ich ici icn ico icp icr ics ihb ihc ihh ihi ihn iho ihp ihr ihs iib iic iih iii iin iio iip iir iis in- inb inc inh ini inn ino inp inr ins io- iob ioc ioh ioi ion ioo iop ior ios ipb ipc ipi ipn ipo ipp ipr ips ir- irb irc iri irn iro irp irr irs is- isb isc ish isi isn iso isp isr iss n-i nbb nbc nbi nbn nbo nbp nbr nbs ncb ncc nch nci ncn nco ncp ncr ncs nhb nhc nhh nhi nhn nhp nhr nhs nib nic nih nii nin nio nip nir nis nnb nnc nnh nni nnn nno nnp nns no- nob noc noh noi non noo nop nor nos npb npc nph npi npn npo npp npr nps nrb nrc nri nrn nro nrp nrr nrs nsb nsc nsh nsi nsn nso nsp nsr nss o-i ob- obb obc obh obi obn obo obp obr obs oc- ocb occ och oci ocn oco ocp ocr ocs ohc ohh ohi ohn oho ohp ohr ohs oib oic oii oin oio oip oir ois on- onb onc onh oni onn ono onp onr ons oo- oob ooc ooh ooi oon ooo oop oor oos op- opb opc oph opi opn opo opp opr ops or- orb orc orh ori orn oro orp orr ors os- osb osc osh osi osn oso osp osr oss p-p pbb pbc pbi pbn pbo pbp pbr pbs pcb pcc pch pci pcn pco pcp pcr pcs phb phc phi phn pho php phr phs pib pic pih pii pin pio pip pir pis pn- pnb pnc pnh pni pnn pno pnp pnr pns pob poc poh poi pon poo pop por pos ppb ppc pph ppi ppn ppo ppp ppr pps prb prc prh pri prn pro prp prr prs ps- psb psc psh psi psn pso psp psr pss rbb rbc rbh rbi rbn rbo rbp rbr rbs rcb rcc rch rci rcn rco rcp rcr rcs rh- rhb rhc rhh rhi rhn rho rhp rhr rhs rib ric rih rii rin rio rip rir ris rnb rnc rnh rni rnn rno rnp rnr rns rob roc roh roi ron roo rop ror ros rpb rpc rph rpi rpn rpo rpp rpr rps rrb rrc rrh rri rrn rrp rrr rrs rsb rsc rsh rsi rsn rso rsp rsr rss sbb sbc sbh sbi sbn sbo sbp sbr sbs scb scc sch sci scn sco scp scr scs sh- shb shc shh shi shn sho shp shr shs sib sic sih sii sin sio sip sir sis snb snc sni snn sno snp snr sns sob soc soh soi son soo sop sor sos spb spc sph spi spn spo spp spr sps sr- srb src srh sri srn sro srp srr srs ss- ssb ssc ssh ssi ssn sso ssp ssr sss