C313212111113331323312111133133313331333133313331333133313331333133311212313231   >>    C31321211111333132331211113313331333133313331333133313331333133313331121231323   <<    C313212111113331323312111133133313331333133313331333133313331333133311212313233   >>      C313212111113331323312111133133313331333133313331333133313331333133311212313232   >>