C313212111113331323312111133133313331333131212111133133313221121212131   >>    C31321211111333132331211113313331333133313121211113313331322112121213   <<    C313212111113331323312111133133313331333131212111133133313221121212133   >>      C313212111113331323312111133133313331333131212111133133313221121212132   >>