C11112331312111112111133133313331333132323213331313331323131111   >>    C1111233131211111211113313331333133313232321333131333132313111   <<    C11112331312111112111133133313331333132323213331313331323131113   >>      C11112331312111112111133133313331333132323213331313331323131112   >>