C112233313331323223313331313331323133313232233132313231323331312311   >>    C11223331333132322331333131333132313331323223313231323132333131231   <<    C112233313331323223313331313331323133313232233132313231323331312313   >>      C112233313331323223313331313331323133313232233132313231323331312312   >>