-ic a-a a-c a-i a-t aaa aac aai aao aap aat ac- aca acc aci aco acp act ai- aia aic aii aio aip ait aoa aoc aoi aoo aop aot ap- apa apc api apo app apt at- ata atc ati ato atp att c-- caa cac cai cao cap cat cca ccc cci cco ccp cct ci- cia cic cii cio cip cit co- coa coc coi coo cop cot cpa cpc cpi cpo cpp cpt cta ctc cti cto ctp ctt ia- iaa iac iai iao iap iat ica icc ici ico icp ict iia iic iii iio iip iit io- ioa ioc ioi ioo iop iot ipa ipc ipi ipo ipp ipt ita itc iti ito itp itt o-i oaa oac oai oao oap oat oc- oca occ oci oco ocp oct oia oic oii oio oip oit oo- ooa ooc ooi ooo oop oot op- opa opc opi opo opp opt ot- ota otc oti oto otp ott p-p paa pac pai pao pap pat pca pcc pci pco pcp pct pia pic pii pio pip pit poa poc poi poo pop pot ppa ppc ppi ppo ppp ppt pt- pta ptc pti pto ptp ptt taa tac tai tao tap tat tca tcc tci tco tcp tct tia tic tii tio tip tit to- toa toc toi too top tot tpa tpc tpi tpo tpp tpt tta ttc tti tto ttp ttt