C313212111113331323312111133133313331333133313331333133313331333133313221321211   >>    C31321211111333132331211113313331333133313331333133313331333133313331322132121   <<    C313212111113331323312111133133313331333133313331333133313331333133313221321213   >>      C313212111113331323312111133133313331333133313331333133313331333133313221321212   >>