package main
import (
"fmt"
)
func main() {
fmt.Println(ByeByeFirst([]string{}))
fmt.Println(ByeByeFirst([]string{"one arg"}))
fmt.Println(ByeByeFirst([]string{"first", "second"}))
fmt.Println(ByeByeFirst([]string{"", "abcd", "efg"}))
}