a-a a-b a-c a-q aaa aab aac aae aaq aau aav ab- aba abb abc abe abq abu abv ac- aca acb acc ace acq acu acv aea aeb aec aee aeq aeu aev aqa aqc au- aua aub auc aue auv av- ava avb avc ave avq avu b-u baa bab bac bae baq bau bav bba bbb bbc bbe bbq bbu bca bcb bcc bce bcq bcu bcv be- bea beb bec bee beq beu bev bqc bqe bua bub buc bue buu bva bvb bvc bve bvu bvv c-- caa cab cac cae caq cau cav cba cbb cbc cbe cbq cbu cbv cca ccb ccc cce ccu ccv ce- cea ceb cec cee ceq ceu cev cqa cqb cqc cua cub cuc cue cuq cuu cuv cva cvb cvc cve cvu cvv eaa eab eac eae eau eav eba ebb ebc ebe ebq ebu ebv ec- eca ecb ecc ece ecq ecu ecv eea eeb eec eee eev eqa eqe eqq equ eqv eu- eua eub euc eue euv eva evb evc eve evv qaa qac qau qba qbc qbe qbq qca qcc qec qee qqq qqu qu- qua que qv- qvc qve ua- uaa uab uac uae uaq uau uav uba ubb ubc ube ubu ubv uca ucb ucc uce ucu ucv uea ueb uec uee uua uuc uue uuu uva uvb uvc uve uvu uvv v-a v-e vaa vab vac vae vau vav vba vbc vbv vca vcc vce vcu vea veb vec vee veu vqa vue vuv vva vvb vvc vvv