C1111233131211111211113313331333133313221211113313331311331333131132321   >>    C111123313121111121111331333133313331322121111331333131133133313113232   <<    C1111233131211111211113313331333133313221211113313331311331333131132323   >>      C1111233131211111211113313331333133313221211113313331311331333131132322   >>