C333312111133133312111133133313331312111133133313223313331333132212121   >>    C33331211113313331211113313331333131211113313331322331333133313221212   <<    C333312111133133312111133133313331312111133133313223313331333132212123   >>      C333312111133133312111133133313331312111133133313223313331333132212122   >>