C31232233133313221211113313331311331333133313331323331323233231   >>    C3123223313331322121111331333131133133313331333132333132323323   <<    C31232233133313221211113313331311331333133313331323331323233233   >>      C31232233133313221211113313331311331333133313331323331323233232   >>