C1111133313331323223313331333133313113313331133132233132313231323111   >>    C111113331333132322331333133313331311331333113313223313231323132311   <<    C1111133313331323223313331333133313113313331133132233132313231323113   >>      C1111133313331323223313331333133313113313331133132233132313231323112   >>