C313212111113331323312111133133313331333132233133313223322231211   >>    C31321211111333132331211113313331333133313223313331322332223121   <<    C313212111113331323312111133133313331333132233133313223322231213   >>      C313212111113331323312111133133313331333132233133313223322231212   >>