C1111233133313231133133313331333133313231323331333133112312113313111   >>    C111123313331323113313331333133313331323132333133313311231211331311   <<    C1111233133313231133133313331333133313231323331333133112312113313113   >>      C1111233133313231133133313331333133313231323331333133112312113313112   >>