```python
from sys import stdin
from itertools import chain
n, *arr = list(map(int, chain(*map(str.split, stdin.readlines()))))
```
by jwcub @ 2024-01-18 00:45:59
@[jwcub](/user/75437)
```py
import sys, re
n, *arr = map(int, re.split(r'\s+', sys.stdin.read().strip()))
```
by Argvchs @ 2024-01-18 00:56:33
@[jwcub](/user/75437) @[Argvchs](/user/533270) 学到了??
by Neoomgg @ 2024-01-18 04:23:46
@[Neoomgg](/user/96137) 可恶 为什么我的emoji变成了问号啊Orz
by Neoomgg @ 2024-01-18 05:37:25