C11112331312111112111133133313331323132313232233133313232331231   >>    C1111233131211111211113313331333132313231323223313331323233123   <<    C11112331312111112111133133313331323132313232233133313232331233   >>      C11112331312111112111133133313331323132313232233133313232331232   >>