C2221333133313331311233132313331333133313331322231333133313222313232321   >>    C222133313331333131123313231333133313331333132223133313331322231323232   <<    C2221333133313331311233132313331333133313331322231333133313222313232323   >>      C2221333133313331311233132313331333133313331322231333133313222313232322   >>