C2221333133313331311233132313331333133313331311233132322331323322121   >>    C222133313331333131123313231333133313331333131123313232233132332212   <<    C2221333133313331311233132313331333133313331311233132322331323322123   >>      C2221333133313331311233132313331333133313331311233132322331323322122   >>