C313212111113331323312111133133313331333133313331333133313331121133132313221211   >>    C31321211111333132331211113313331333133313331333133313331333112113313231322121   <<    C313212111113331323312111133133313331333133313331333133313331121133132313221213   >>      C313212111113331323312111133133313331333133313331333133313331121133132313221212   >>