C1111133313331323223313331333133313331323133313331311331333133313231323132121   >>    C111113331333132322331333133313331333132313331333131133133313331323132313212   <<    C1111133313331323223313331333133313331323133313331311331333133313231323132123   >>      C1111133313331323223313331333133313331323133313331311331333133313231323132122   >>