C313212111113331323312111133133313331333133313331333133313331333133313132112131   >>    C31321211111333132331211113313331333133313331333133313331333133313331313211213   <<    C313212111113331323312111133133313331333133313331333133313331333133313132112133   >>      C313212111113331323312111133133313331333133313331333133313331333133313132112132   >>