C3132121111133313233121111331333133313331312121111331333132213223221   >>    C313212111113331323312111133133313331333131212111133133313221322322   <<    C3132121111133313233121111331333133313331312121111331333132213223223   >>      C3132121111133313233121111331333133313331312121111331333132213223222   >>