## concatalternate
### Instructions
Write a function `ConcatAlternate()` that receives two slices of an `int` as arguments and returns a new slice with the result of the alternated values of each slice.
- The input slices can be of different lengths.
- The new slice should start with an element of the largest slice.
- If the slices are of equal length, the new slice should return the elements of the first slice first and then the elements of the second slice.
### Expected function
```go
func ConcatAlternate(slice1,slice2 []int) []int {
}
```
### Usage
Here is a possible program to test your function:
```go
package main
import (
"fmt"
"piscine"
)
func main() {
fmt.Println(piscine.ConcatAlternate([]int{1, 2, 3}, []int{4, 5, 6}))
fmt.Println(piscine.ConcatAlternate([]int{2, 4, 6, 8, 10}, []int{1, 3, 5, 7, 9, 11}))
fmt.Println(piscine.ConcatAlternate([]int{1, 2, 3}, []int{4, 5, 6, 7, 8, 9}))
fmt.Println(piscine.ConcatAlternate([]int{1, 2, 3}, []int{}))
}
```
And its output:
```console
$ go run .
[1 4 2 5 3 6]
[1 2 3 4 5 6 7 8 9 10 11]
[4 1 5 2 6 3 7 8 9]
[1 2 3]
```
