백준 13623 자바 - Zero or One

// Zero or One
package Bronze_IV_4;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Ex13623 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());

        int a = Integer.parseInt(st.nextToken());
        int b = Integer.parseInt(st.nextToken());
        int c = Integer.parseInt(st.nextToken());

        if (a == b && b == c) {
            System.out.println('*');
        } else if (a == b) {
            System.out.println('C');
        } else if (a == c) {
            System.out.println('B');
        } else if (b == c) {
            System.out.println('A');
        }
    }
}