package main import ( "fmt" "os" "strings" ) func main() { if len(os.Args) != 2 || os.Args[1] == "" { return } s := os.Args[1] vowel := strings.IndexAny(s, "aeiouAEIOU") if vowel == -1 { fmt.Println("No vowels") } else { fmt.Println(string(s[vowel:]) + string(s[:vowel]) + "ay") } }