2.3

package KursovaRabotaSrok2;
import java.util.Scanner;
public class IndexOfLetter3 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine().toLowerCase();
        char[] letters = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'};
        for (int i = 0; i < input.length(); i++) {
            char symbol = input.charAt(i);
            int position = new String(letters).indexOf(symbol);
            System.out.printf("%c -> %d%n", symbol, position);
        }
    }
}