C2221333133313331311233132313331333133313232123313331323223311311   >>    C222133313331333131123313231333133313331323212331333132322331131   <<    C2221333133313331311233132313331333133313232123313331323223311313   >>      C2221333133313331311233132313331333133313232123313331323223311312   >>