C31232233133313221211113313331333132313232233133313331322211232323311   >>    C3123223313331322121111331333133313231323223313331333132221123232331   <<    C31232233133313221211113313331333132313232233133313331322211232323313   >>      C31232233133313221211113313331333132313232233133313331322211232323312   >>