C111123313331323113313331333133313331323131211113313331322331323132332311   >>    C11112331333132311331333133313331333132313121111331333132233132313233231   <<    C111123313331323113313331333133313331323131211113313331322331323132332313   >>      C111123313331323113313331333133313331323131211113313331322331323132332312   >>