C11111333133313232233133313331333133313231333133313311211331311331121231   >>    C1111133313331323223313331333133313331323133313331331121133131133112123   <<    C11111333133313232233133313331333133313231333133313311211331311331121233   >>      C11111333133313232233133313331333133313231333133313311211331311331121232   >>