b-p bbb bbc bbd bbe bbp bcb bcc bcd bce bcp bdb bdc bdd bde bdp be- beb bec bed bee bep bpb bpc bpd bpe bpp c-- cbb cbc cbd cbe cbp ccb ccc ccd cce ccp cdb cdc cdd cde cdp ce- ceb cec ced cee cep cpb cpc cpd cpe cpp dbb dbc dbd dbe dbp dcb dcc dcd dce dcp ddb ddc ddd dde ddp de- deb dec ded dee dep dpb dpc dpd dpe dpp ebb ebc ebd ebe ebp ec- ecb ecc ecd ece ed- edb edc edd ede edp eeb eec eed eee eep ep- epb epc epd epe epp p-p pbb pbc pbd pbe pbp pcb pcc pcd pce pcp pdb pdc pdd pde pdp peb pec ped pee pep ppb ppc ppd ppe ppp