C11112331312111112111133133313331333132323213331313331323132221   >>    C1111233131211111211113313331333133313232321333131333132313222   <<    C11112331312111112111133133313331333132323213331313331323132223   >>      C11112331312111112111133133313331333132323213331313331323132222   >>