C11112331312111112111133133313331323132313232233132322231311311   >>    C1111233131211111211113313331333132313231323223313232223131131   <<    C11112331312111112111133133313331323132313232233132322231311313   >>      C11112331312111112111133133313331323132313232233132322231311312   >>