-ic c-- ccc cci ccr cct ccv ccx ci- cic cii cir cit civ cix crc cri crr crt crv crx ctc cti ctr ctt ctv ctx cvc cvi cvr cvt cvv cvx cxc cxi cxr cxt cxv cxx i-v icc ici icr ict icv iic iii iir iit iix ir- irc iri irr irt irv irx itc iti itt itv itx ivc ivi ivr ivt ivv ivx ixc ixi rcc rci rcr rct rcv rcx ric rii rir rit riv rix rrc rri rrr rrt rtc rti rtr rtt rtv rtx rvc rvi rvr rvt rvv rxr t-x tcc tci tcr tct tcv tcx tic tii tir tit tiv tix trc tri trr trt trv trx ttc tti ttr ttt ttv ttx tvc tvi tvr tvt tvx txi txt vcc vci vcr vct vcx vi- vic vii vir vit viv vix vrc vri vrr vrt vtc vti vtr vtt vtv vtx vvc vvi vvr vvt vvv vxr vxv xci xcr xcv xcx xic xii xit xiv xix xrc xrt xrx xtc xti xtr xtv xtx xvi xvt xxi xxv xxx