Variable argument function in Golang

PROGRAM:

package main

import "fmt"

func main() {
    myfunc(10, 20, 30)
    fmt.Printf("\n")

    myfunc(52, 43, 24, 78, 23)
    fmt.Printf("\n")

    vals := []int{1, 2, 3, 4, 5, 6, 7, 8}
    myfunc(vals...)
}

func myfunc(args ...int) {
    for ind, val := range args {
        fmt.Println(ind, "->", val)
    }
}

OUTPUT:

0 -> 10
1 -> 20
2 -> 30

0 -> 52
1 -> 43
2 -> 24
3 -> 78
4 -> 23

0 -> 1
1 -> 2
2 -> 3
3 -> 4
4 -> 5
5 -> 6
6 -> 7
7 -> 8