C11112331312111112111133133313331323132313232233133313113222311   >>    C1111233131211111211113313331333132313231323223313331311322231   <<    C11112331312111112111133133313331323132313232233133313113222313   >>      C11112331312111112111133133313331323132313232233133313113222312   >>