C1111233133313231133133313331333133313231331133133313331313232233323121   >>    C111123313331323113313331333133313331323133113313331333131323223332312   <<    C1111233133313231133133313331333133313231331133133313331313232233323123   >>      C1111233133313231133133313331333133313231331133133313331313232233323122   >>