bbb bbc bbd bbe bbl bbq bcb bcc bcd bce bcl bcq bdb bdc bdd bde bdl bdq be- beb bec bed bee bel beq blb blc bld ble bll blq bqc bqd bqe c-- cbb cbc cbd cbe cbl cbq ccb ccc ccd cce ccl cdb cdc cdd cde cdl cdq ce- ceb cec ced cee cel ceq cl- clb clc cld cle cll cqb cqc cqd cql dbb dbc dbd dbe dbl dbq dcb dcc dcd dce dcl ddb ddc ddd dde ddl ddq de- deb dec ded dee del deq dl- dlb dlc dld dle dll dqe ebb ebc ebd ebe ebl ebq ec- ecb ecc ecd ece ecl ecq ed- edb edc edd ede edl eeb eec eed eee eel elb elc eld ele ell eqe eqq lbb lbc lbd lbe lbl lcb lcc lcd lce lcl lcq ldb ldc ldd lde ldl leb lec led lee lel leq llb llc lld lle lll llq qbc qbd qbe qbq qcc qcd qcl qdb qec qed qee qqq