C11112331312111112111133133313331323132313232233132322123231131   >>    C1111233131211111211113313331333132313231323223313232212323113   <<    C11112331312111112111133133313331323132313232233132322123231133   >>      C11112331312111112111133133313331323132313232233132322123231132   >>