C2221333133313331311233132313331333133313331323121111133313133222321   >>    C222133313331333131123313231333133313331333132312111113331313322232   <<    C2221333133313331311233132313331333133313331323121111133313133222323   >>      C2221333133313331311233132313331333133313331323121111133313133222322   >>