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## displayz
### Instructions
Write a program that takes a `string`, and displays the first `z` character it encounters in it, followed by a newline (`'\n'`).
If there are no `z` characters in the string, the program just writes `z` followed by a newline (`'\n'`).
3 years ago
If the number of arguments is not 1, the program displays a `z` followed by a newline (`'\n'`).
### Usage
```console
$ go run . "xyz"
z
$ go run . "bcvbvZ"
z
$ go run . "nbv"
z
3 years ago
$
```