a-ak aaaa aaab aaar aaba aabb aaka aara abaa abab abag abak abar abb- abba abbb abbr abra abza agag agar agaz agba agga agra akaa akar akka akr- akra arab arag arak arar arba arga argb arka arr- arra arrg arrk arrr arza aza- azab azar azaz azra azza baaa baak baar baaz baba babb babr baga bagg bak- baka bakr bar- bara barb barg bark barr barz baza bbbb bbga bbrg brab brag brak braz brka brkb brrr brza bzrk bzzz gaar gaba gabb gabr gabz gaga gagg gara garb garg garr garz gaza gbag gggg grab graz grbr grrr kaaa kaab kaag kaak kaar kaba kabb kabg kabr kabz kag- kaga kagb kagg kagr kagz kaka kakk kara karb karg kark karr karz kaza kazg kazr kazz kbaa kbab kbak kbar kbaz kbba kbbb kbbg kbbk kbbr kbbz kbga kbgb kbgg kbgr kbgz kbkb kbkg kbkk kbkr kbkz kbra kbrb kbrg kbrk kbrz kbzz kgab kgak kgba kgbb kgbr kgga kggg kggr kgra kgrb kgrg kgrk kgrr kgrz kkaa kkag kkar kkba kkbb kkbg kkbr kkbz kkgb kkgr kkkk kkrb kkrk kkrr kkrz kkzz krab krag krak krar kraz krba krbb krbg krbk krbr krbz krka krkk krkr krkz krrb krrg krrk krrr krrz krza krzk krzr krzz kzar kzaz kzbb kzbg kzbk kzbr kzbz kzgz kzkr kzkz kzrb kzrg kzrk kzrr kzrz kzza kzzb kzzk kzzr kzzz raab raag raak raaz raba rabb rabk raga ragg raka rakk rara rarb rark rarz raza razg razr razz rbbb rbbr rgba rrrr rzab rzka zaar zaba zabr zagg zaka zakk zara zarb zark zarr zaza zbar zgba zzzz