C2221333133313331311233132313331333133313331323232133313112112123231   >>    C222133313331333131123313231333133313331333132323213331311211212323   <<    C2221333133313331311233132313331333133313331323232133313112112123233   >>      C2221333133313331311233132313331333133313331323232133313112112123232   >>