## Barbecue Skewers

You are in charge of the barbecue grill. A **vegetarian skewer** is a skewer that has **only vegetables (-o)**. A **non-vegetarian skewer** is a skewer with **at least one piece of meat (-x)**.

For example, the grill below has **4 non-vegetarian skewers** and **1 vegetarian skewer** (the one in the middle).

```text
["--xo--x--ox--",
"--xx--x--xx--",
"--oo--o--oo--",      <<< vegetarian skewer
"--xx--x--ox--",
"--xx--x--ox--"]
```

#### Examples

Given a BBQ grill, write a function that returns `[# vegetarian skewers, # non-vegetarian skewers]`. For example above, the function should return `[1, 4]`.

```text
 [
  "--oooo-ooo--",
  "--xx--x--xx--",
  "--o---o--oo--",
  "--xx--x--ox--",
  "--xx--x--ox--"
] ➞ [2, 3]

[
  "--oooo-ooo--",
  "--xxxxxxxx--",
  "--o---",
  "-o-----o---x--",
  "--o---o-----"
) ➞ [3, 2]
```

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### Notes

- NA