import java.util.Scanner;
 
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String a = scan.nextLine();

        String test = a.equals("ABC") ? "ARC" : "ABC";
        System.out.println(test);
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String a = scan.nextLine();

        String test = a.equals("ABC") ? "ARC" : "ABC";
        System.out.println(test);
    }
} Main public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String a = scan.nextLine();

        String test = a.equals("ABC") ? "ARC" : "ABC";
        System.out.println(test);
    } main {
        Scanner scan = new Scanner(System.in);
        String a = scan.nextLine();

        String test = a.equals("ABC") ? "ARC" : "ABC";
        System.out.println(test);
    } Scanner scan = new Scanner(System.in); scan new Scanner(System.in) String a = scan.nextLine(); a scan.nextLine() scan.nextLine scan String test = a.equals("ABC") ? "ARC" : "ABC"; test a.equals("ABC") ? "ARC" : "ABC" a.equals("ABC") a.equals a "ABC" "ARC" "ABC" System.out.println(test) System.out.println System.out System System.out test String[] args args public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String a = scan.nextLine();

        String test = a.equals("ABC") ? "ARC" : "ABC";
        System.out.println(test);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String a = scan.nextLine();

        String test = a.equals("ABC") ? "ARC" : "ABC";
        System.out.println(test);
    }
} Main
import java.util.Scanner;
 
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String a = scan.nextLine();

        String test = a.equals("ABC") ? "ARC" : "ABC";
        System.out.println(test);
    }
}