C11112331312111112111133133313331323132313232233131133131323131   >>    C1111233131211111211113313331333132313231323223313113313132313   <<    C11112331312111112111133133313331323132313232233131133131323133   >>      C11112331312111112111133133313331323132313232233131133131323132   >>