C111123313121111121111331333133313331323231333133313331121211113313133321   >>    C11112331312111112111133133313331333132323133313331333112121111331313332   <<    C111123313121111121111331333133313331323231333133313331121211113313133323   >>      C111123313121111121111331333133313331323231333133313331121211113313133322   >>