10814_나이순 정렬.ipynb

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      "3\n",
      "21 Junkyu\n",
      "21 Dohyun\n",
      "20 Sunyoung\n",
      "20 Sunyoung\n",
      "21 Junkyu\n",
      "21 Dohyun\n"
     ]
    }
   ],
   "source": [
    "li = []\n",
    "for _ in range(int(input())):\n",
    "    age, name = input().split()\n",
    "    li.append([int(age), name])\n",
    "li.sort(key=lambda x : x[0])\n",
    "for i in li:\n",
    "    print(*i)"
   ]
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