C11112331312111112111133132313331323331323223313231323132321111   >>    C1111233131211111211113313231333132333132322331323132313232111   <<    C11112331312111112111133132313331323331323223313231323132321113   >>      C11112331312111112111133132313331323331323223313231323132321112   >>