a-a a-c aaa aac aah aan aao aap aar ac- aca acc ach acn aco acp acr aha ahc ahh ahn aho ahp ahr an- ana anc anh ann ano anp anr aoa aoc aoh aon aoo aop aor ap- apa apc aph apn apo app apr ar- ara arc arh arn aro arp arr c-- caa cac cah can cao cap car cca ccc cch ccn cco ccp ccr ch- cha chc chh chn cho chp chr cn- cna cnc cnh cnn cno cnp cnr co- coa coc coh con coo cop cor cpa cpc cph cpn cpo cpp cpr cra crc crh crn cro crp crr haa hac hah han hao hap har hca hcc hch hcn hco hcp hcr hha hhc hhh hhn hho hhp hhr hna hnc hnh hnn hno hoa hoc hoh hon hoo hop hor hpa hpc hph hpn hpo hpp hpr hr- hra hrc hrh hrn hro hrp hrr naa nac nah nan nao nap nar nca ncc nch ncn nco ncp ncr nha nhc nhh nhn nhp nhr nna nnc nnh nnn nno nnp no- noa noc noh non noo nop nor npa npc nph npn npo npp npr nra nrc nrn nro nrp nrr oaa oac oah oan oao oap oar oc- oca occ och ocn oco ocp ocr oha ohc ohh ohn oho ohp ohr on- ona onc onh onn ono onp onr oo- ooa ooc ooh oon ooo oop oor op- opa opc oph opn opo opp opr or- ora orc orh orn oro orp orr p-p paa pac pah pan pao pap par pca pcc pch pcn pco pcp pcr pha phc phn pho php phr pn- pna pnc pnh pnn pno pnp pnr poa poc poh pon poo pop por ppa ppc pph ppn ppo ppp ppr pra prc prh prn pro prp prr ra- raa rac rah ran rao rap rar rca rcc rch rcn rco rcp rcr rh- rha rhc rhh rhn rho rhp rhr rna rnc rnh rnn rno rnp rnr roa roc roh ron roo rop ror rpa rpc rph rpn rpo rpp rpr rra rrc rrh rrn rrp rrr