C1111133313331323223313331333133313113313331133132233132313223313231322311   >>    C111113331333132322331333133313331311331333113313223313231322331323132231   <<    C1111133313331323223313331333133313113313331133132233132313223313231322313   >>      C1111133313331323223313331333133313113313331133132233132313223313231322312   >>