a-a a-b a-c aaa aab aac aae aap aas aaw ab- aba abb abc abe abp abs abw ac- aca acb acc ace acp acs acw aea aeb aec aee aep aes aew ap- apa apb apc ape app aps apw as- asa asb asc ase asp ass asw aw- awa awb awc awe awp aws aww b-p baa bab bac bae bap bas baw bba bbb bbc bbe bbp bbs bbw bca bcb bcc bce bcp bcs be- bea beb bec bee bep bes bew bpa bpb bpc bpe bpp bps bpw bsa bsb bsc bse bsp bss bsw bwa bwb bwc bwp bws c-- caa cab cac cae cap cas caw cba cbb cbc cbe cbp cbs cbw cca ccb ccc cce ccp ccs ccw ce- cea ceb cec cee cep ces cew cpa cpb cpc cpe cpp cps cpw csa csb csc cse csp css csw cw- cwa cwb cwc cwe cwp cws eaa eab eac eae eap eas eaw eba ebb ebc ebe ebp ebs ebw ec- eca ecb ecc ece ecs ecw eea eeb eec eee eep ees eew ep- epa epb epc epe epp eps epw es- esa esb esc ese esp ess esw ewa ewb ewc ewe ewp ews eww p-p paa pab pac pae pap pas paw pba pbb pbc pbe pbp pbs pbw pca pcb pcc pce pcp pcs pcw pea peb pec pee pep pes pew ppa ppb ppc ppe ppp pps ppw ps- psa psb psc pse psp pss psw pwa pwb pwc pwe pwp pws saa sab sac sae sap sas saw sba sbb sbc sbe sbp sbs sbw sca scb scc sce scp scs scw se- sea seb sec see sep ses sew spa spb spc spe spp sps spw ss- ssa ssb ssc sse ssp sss ssw swa swb swc swe swp sws waa wab wac wae wap was waw wba wbb wbc wbe wbs wbw wca wcb wcc wce wcp wcs wcw wea web wec wee wep wes wew wpa wpb wpc wpe wpp wps wsa wsb wsc wse wsp wss wsw wwa wwc wwe wwp www