C313212111133131211331333133313331333132313123312111133132233132232311   >>    C31321211113313121133133313331333133313231312331211113313223313223231   <<    C313212111133131211331333133313331333132313123312111133132233132232313   >>      C313212111133131211331333133313331333132313123312111133132233132232312   >>