C3132121111133313233121111331333133313331333133313331333131133131232323221   >>    C313212111113331323312111133133313331333133313331333133313113313123232322   <<    C3132121111133313233121111331333133313331333133313331333131133131232323223   >>      C3132121111133313233121111331333133313331333133313331333131133131232323222   >>