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### Instructions
Write a program that checks if all numbers up to a given number are odd or even.
The numbers will be between `0` and `100`.
- If the number is `odd` then it prints `ping` as in the example below.
- If the number is `even` then it prints `pong`.
- If the number of arguments is invalid then do nothing.
### Usage
```console
$ go run . 6 | cat -e
0 ping$
1 pong$
2 ping$
3 pong$
4 ping$
5 pong$
$ go run . | cat -e
$
```