a-a a-i a-t aaa aaf aai aap aat af- afa aff afi afp aft ai- aia aif aii aip ait ap- apa apf api app apt at- ata atf ati atp att faa faf fai fap fat ffa fff ffi ffp fft fia fif fii fip fit fpa fpi fpp fpt fta ftf fti ftp ftt i-f ia- iaa iaf iai iap iat ifa iff ifi ifp ift iia iif iii iip iit ipa ipf ipi ipp ipt ita itf iti itp itt p-p paa paf pai pap pat pfa pff pfi pfp pft pia pif pii pip pit ppa ppf ppi ppp ppt pt- pta ptf pti ptp ptt taa taf tai tap tat tfa tff tfi tfp tft tia tif tii tip tit tpa tpf tpi tpp tpt tta ttf tti ttp ttt