C3123121111113313121111331333133313311211113323213331323223313131121   >>    C312312111111331312111133133313331331121111332321333132322331313112   <<    C3123121111113313121111331333133313311211113323213331323223313131123   >>      C3123121111113313121111331333133313311211113323213331323223313131122   >>