a-be aaaa aaab aaac aaae aaba aabb aabc aaca aacb aacc aace aaea aaec abaa abab abac abae abaj abb- abba abbb abbe abca abcb abcc abec abee acaa acab acac acae acba acca accc acce ace- acea acec aeac aecb ajab ajac ajba ajee baaa baba babb babe bac- baca bacc bace baja bbbb bbeb bcaa bcbc bcca bccc bcec beba bebb bebe beca beeb beej beja bjcc bjec caaa caab caac caba cabe cac- caca cacc cace caec caja cbac cbbc cbca cbcc cbce cbea cbec cbee ccaa ccab ccac ccba ccbc ccca cccb cccc ccee ceac ceba cec- ceca cece ceeb ceec ceja cejc cjbc cjca cjcb cjcj eaba eaca eacc eaec ebac ebba ebbc ebcc ecaa ecac ecbc ecbe ecca eccb eccc ecce eeca eeea eeee jaba jaca jacc jace jaja jbaa jcbc jccc jebb jebe jjcc