C1111233133313231133133313331333133313231121333133313331323221313121   >>    C111123313331323113313331333133313331323112133313331333132322131312   <<    C1111233133313231133133313331333133313231121333133313331323221313123   >>      C1111233133313231133133313331333133313231121333133313331323221313122   >>