C1111233133313231133133313331333133311221123121111331322331312323221   >>    C111123313331323113313331333133313331122112312111133132233131232322   <<    C1111233133313231133133313331333133311221123121111331322331312323223   >>      C1111233133313231133133313331333133311221123121111331322331312323222   >>