-ic a-a a-b a-c a-i aaa aab aac aaf aai ab- aba abb abc abf abi ac- aca acb acc acf aci af- afa afb afc aff afi ai- aia aib aic aif aii baa bab bac baf bai bba bbb bbc bbf bbi bca bcb bcc bcf bci bfa bfb bfc bff bfi bi- bia bib bic bif bii c-- caa cab cac caf cai cba cbb cbc cbf cbi cca ccb ccc ccf cci cfa cfb cfc cff cfi ci- cia cib cic cif cii faa fab fac faf fai fba fbb fbc fbf fbi fca fcb fcc fcf fci ffa ffc fff ffi fia fib fic fif fii i-f ia- iaa iab iac iaf iai iba ibb ibc ibf ibi ica icb icc icf ici ifa ifb ifc iff ifi iia iib iic iif iii

a-ii aaaa aaab aaac aaaf aaai aaba aabb aabc aabi aaca aacb aacc aacf aaci aafa aafb aafc aaff aafi aaib aaic aaii abaa abab abac abaf abai abb- abba abbb abbi abca abcb abcc abcf abci abff abia abib abic acaa acab acac acai acba acca accc accf acci acfc acfi aci- acia acic acif afaa afca afcb afcc afci affa affc affi afia afib afif aiai aiba aica aicc aicf aiff aiia aiib aiic ba-i baaa baaf baba babb babi bac- baca bacc baci bafc baff baia baib baic bbbb bbci bbfc bcaa bcbc bcca bccc bcci bcfc bcia bfca biaf biba bibb bibi bica bicc bici bifa biff bifi caaa caab caac caaf caba cabf cabi cac- caca cacc caci cafa cafb cafc caff caia caib caic cbac cbbc cbca cbcc cbfb cbfc cbia ccaa ccab ccac ccaf ccai ccba ccbc ccca cccb cccc cccf ccci ccfa ccfc ccff ccfi ccic ccii cfaa cfab cfac cfbc cfca cfcb cfcf cffb cfia ciaa ciba cibc cibi cica cicc cici cifa ciff ciia ciii faaa faac faba fabi faca facc fafa fafc faff fafi fcab fcba fcca fccf fcic fcii ffcc ffff ffii fiaa fiac fiaf fiba fica ficc fifa fifc fiff fifi fiii iaaa iaac iaai iaba iaca iacc iafc iaff iaia ibac ibca ibfi ibia icaa icab icac icaf icai icbc icca iccb iccc iccf icci icfb ifaa ifac ifbb ific iiac iica iifa iiii

-aaa- a-fib a-iii aaaai aabaa aabba aacbc aaiib abaab ababa abaca abaci abaia abbac abbai abbia abccc abfab abici acaca acacb accia afaic affif afifa aiaff aiaia babai babia babic bacab bacca bacci bacia baffa baffi bafia baiba baici bbiab bbiaf bibia bibic biffa biffi c-a-c ca-ca caaba cabia cacia cacic caffa caffi caibi caifi ccccc cccii ccifc cciii ciaci cicia fabfi fabia facai facci facia fafia fbcci fcaca fcbia fibia ficca ibaba ibafa ibiai iccia icica icici if-- ifafa iiiac iiiii

aaaaba abacab abaiba acacia afaiac baabaa babici bacaba bacica baicai bbbbbb cabiai caccia cacica cafcaf cibaca faifai fiafia fibbia ibiaca

acaiaca babaici bac-cab bbbbbbb cia-cia ciccaba

bbbbbbbb cibaciba i-ii-iii

baabaabaa

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb ccccccccccccccc