func Letters(s string) []string {
	result := []string{}
	for _, r := range s {
		result = append(result, string(r))
	}
	return result
}
func Letters(s string) []string {
	result := []string{}
	for _, r := range s {
		result = append(result, string(r))
	}
	return result
}
func Letters ( s string ) [ ] string { result := [ ] string { } for _ , r := range s { result = append ( result , string ( r ) ) } return result }
// Letters returns an array of runes as strings so it can be indexed into.
Letters returns an array of runes as strings so it can be indexed into .