cccc cccu ccee ccgc ccrc ccre ccrg ccuc cec- cece ceec cege cer- cerc cere cgcc cgcg cger crcc crce crcr cre- crec cree creg creu crue crug cucc cuce cuer cure curr eccc ecce ecrc ecrr ecru eeee eerc eerg egcc egcg egcr egec egee eger egge egre ercc erce erec erer erg- ergg errc erre eruc erur euer euge eur- eurc eure gc-c gccc gcrg gece geer gege gegg gere geru geue gggg grcc grce grec gree greg greu grrr grue grug grur guer guge gugg gugu gure gurg gurr guru rccc rcgc rcrg recc rece recr recu rege regr regu rere rerg reru reue reuu rrrr ruce ruer ruge rugg rurc rure ruru ucrc ugcc ugcg ugur uguu ure- urge urgu urre urur uuuu