C1111133313331323223313331333133313113313121111331312133313331313321   >>    C111113331333132322331333133313331311331312111133131213331333131332   <<    C1111133313331323223313331333133313113313121111331312133313331313323   >>      C1111133313331323223313331333133313113313121111331312133313331313322   >>