C11112331312111112111133133313331333132311211331323132322331323312311   >>    C1111233131211111211113313331333133313231121133132313232233132331231   <<    C11112331312111112111133133313331333132311211331323132322331323312313   >>      C11112331312111112111133133313331333132311211331323132322331323312312   >>