public/subjects/displayz.en.md

## displayz

### Instructions

Write a program that takes a string, and displays the first 'a' character it
encounters in it, followed by a newline. If there are no 'a' characters in the
string, the program just writes a newline. If the number of parameters is not
1, the program displays 'a' followed by a newline.

### Expected output

```console
student@ubuntu:~/piscine/test$ go build
student@ubuntu:~/piscine/test$ ./test "abc"
z
student@ubuntu:~/piscine/test$ ./test "bcvbvZ"
z
student@ubuntu:~/piscine/test$ ./test "nbz"
z
student@ubuntu:~/piscine/test$ ./test
z
```