C313212111113331323312111133133313331333133313331333133312213221   >>    C31321211111333132331211113313331333133313331333133313331221322   <<    C313212111113331323312111133133313331333133313331333133312213223   >>      C313212111113331323312111133133313331333133313331333133312213222   >>