bbbb bbeb bbwc bcbc bcbp bccc bcec bcpp bebb bebe beeb beep bewe bpcp cbbc cbcc cbce cbcp cbec cbee cbpc cbpp ccbc cccb cccc cccp ccee ccpe ccpp cebp cec- cece cecp ceeb ceec cepc cepe cepp cewe cpbc cpce cpeb cpep cweb ebbc ebbw ebcc ecbc ecbe eccb eccc ecce ecpp eeee epcc epec epee eppc eppp ewew pbcc pcbc pccc pcce pccw pcep pcpb pcpp pece peec peep pepe pewe ppcc pppp wbbb wbbe wbbp wbbw wbcb wbce wbcp wbcw wbeb wbec wbew wbpc wbpe wbpw wbwb wbwc wcbc wcbe wcbw wccb wccc wcce wccp wccw wceb wcec wcee wcpb wcpc wcpe wcpp wcwb wcwc wcwp webb webc webe webp wecb wecc wecw weeb weec weep wepe wepp wewc wewe wpbc wpcc wpce wpcw wpeb wpec wpep wppb wppc wpwc wwbb wwbc wwcb wwcw wweb wwec wwpb wwpc wwpw wwwc wwwe wwww