a-a a-c aaa aac aad aas aav ac- aca acc acd acs acv ad- ada adc add ads adv as- asa asc asd ass asv av- ava avc avd avs c-- caa cac cad cas cav cca ccc ccd ccs ccv cda cdc cdd cds cdv csa csc csd css csv cva cvc cvd cvs cvv daa dac dad das dav dca dcc dcd dcs dcv dda ddc ddd dds dsa dsc dsd dss dsv dva dvc dvd dvs saa sac sad sas sav sca scc scd scs scv sda sdc sdd sds sdv ss- ssa ssc ssd sss ssv sva svc svd svs svv v-a vaa vac vad vas vav vca vcc vcd vcs vdc vdd vds vdv vsa vsc vsd vss vsv vva vvc vvs vvv