C313212111113331323312111133133313331333133313331333133313331333131212221   >>    C31321211111333132331211113313331333133313331333133313331333133313121222   <<    C313212111113331323312111133133313331333133313331333133313331333131212223   >>      C313212111113331323312111133133313331333133313331333133313331333131212222   >>