C313212111113331323312111133133313331333133313331333133313231323223331211   >>    C31321211111333132331211113313331333133313331333133313331323132322333121   <<    C313212111113331323312111133133313331333133313331333133313231323223331213   >>      C313212111113331323312111133133313331333133313331333133313231323223331212   >>