C313212111113331323312111133133313331333133313331333133313231223131   >>    C31321211111333132331211113313331333133313331333133313331323122313   <<    C313212111113331323312111133133313331333133313331333133313231223133   >>      C313212111113331323312111133133313331333133313331333133313231223132   >>