https://www.acmicpc.net/problem/10809
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int[] arr = new int[26];
for (int i = 0; i < arr.length; i++) {
arr[i] = -1;
}
String S = sc.nextLine();
for (int i = 0; i < S.length(); i++) {
char ch = S.charAt(i);
if (arr[ch - 'a'] == -1) {
arr[ch - 'a'] = i;
}
}
for (int i = 0; i < 26; i++) {
System.out.print(arr[i] + " ");
}
sc.close();
}
}