cccc cccp cccs ccgc ccgs ccnc ccnp ccnr ccns ccpn ccpp ccpr ccps ccrc ccrg ccrp ccrs ccsg ccsn ccsp ccss cgcc cgcg cggs cgns cgss cncp cnrc cnrr cnss cpcs cpns cpps cprs cpsc cpsr crcc crcr crgs crns crpc crps crsp crss cscc cscr cscs csgn csnp cspc csps csrc csrs cssr gc-c gccc gccs gcpc gcrg gcss gggg ggrn ggss gncc gngc gnpc gnps gnrc gnrr gpgp gprp gprs gpsg gpss grcc grpc grps grrr grrs grss gscp gspc nccc nccn nccp nccr nccs ncgr ncgs ncnc ncpc ncrc ncrp ncsc ncss ngns ngpc ngsn nngn nnnn nnpr nnss npcc nppc npss nrcs nrpc nrpn nrps nrrc nrsc nrsp nscc nscs nsnr nspc nsps nsrc nssc nssp nssr nsss pccc pccs pcgg pcgs pcns pcpn pcpp pcps pcrc pgcc pgrc pgsc pgss pnpp pnsc ppcc ppcs pppn pppp ppps pprc ppss prcc prcp prcs prgs prnp prps prrs prsc prss psgr psnc psnr pspp pspr psps psrp pssc rccc rccs rcgc rcnr rcps rcrg rcsc rcss rncp rncs rngs rnsp rpcs rpgs rppn rpps rrrr rrsp rscc rscn rscs rsgc rsnn rsnr rsps sccc sccp sccs scgp scgs scnr scps scr- scrc scrn scrs scsc scsn scsr sgcg sggg sggs sgps sgss sncc sncp snns snpg snpp snrs spcc spcs spns spps sprs spsp spss srcc srnn srpc srps srsp sscc sscp sscs ssgs ssns sspc ssps ssrc ssrg ssrs sssc ssss