백준 10814. 나이순 정렬

https://www.acmicpc.net/problem/10814

import sys
input = sys.stdin.readline

n = int(input())
ans = []
for i in range(n):
    age, name = input().split()
    ans.append([int(age),i,name])
ans.sort(key=lambda x : [x[0],x[1]])
for a, b, c in ans:
    print(str(a),c)