C2221333133313331311233132313331333133313232123313331323133112323223312111   >>    C222133313331333131123313231333133313331323212331333132313311232322331211   <<    C2221333133313331311233132313331333133313232123313331323133112323223312113   >>      C2221333133313331311233132313331333133313232123313331323133112323223312112   >>