C11111333133313232233133313331333133313231333133313331121131311331   >>    C1111133313331323223313331333133313331323133313331333112113131133   <<    C11111333133313232233133313331333133313231333133313331121131311333   >>      C11111333133313232233133313331333133313231333133313331121131311332   >>