a-a a-c aaa aac aae aak aaw ac- aca acc ace ack acw aea aec aee aek aew aka akc ake akk akw aw- awa awc awe awk aww c-- caa cac cae cak caw cca ccc cce cck ccw ce- cea cec cee cek cew cka ckc ckw cw- cwa cwc cwe cwk eaa eac eae eak eaw ec- eca ecc ece eck ecw eea eec eee eek eew eka ekc eke ewa ewc ewe ewk eww ka- kaa kac kae kak kaw kca kcc kce kck ke- kea kec kee kek kew kkc kke kkk kw- kwa kwc kwk kww waa wac wae wak waw wca wcc wce wck wcw wea wec wee wek wew wka wkc wke wkw wwa wwc wwe www