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