import java.util.Scanner;
 
public class Main{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String str = scan.next();
		String asw = "ABC";
 
		if (str.equals(asw)) {
			System.out.println("ARC");
		} else {
			System.out.println("ABC");
		}
        scan.close();
    }
} import java.util.Scanner; Scanner java.util public class Main{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String str = scan.next();
		String asw = "ABC";
 
		if (str.equals(asw)) {
			System.out.println("ARC");
		} else {
			System.out.println("ABC");
		}
        scan.close();
    }
} Main public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String str = scan.next();
		String asw = "ABC";
 
		if (str.equals(asw)) {
			System.out.println("ARC");
		} else {
			System.out.println("ABC");
		}
        scan.close();
    } main {
        Scanner scan = new Scanner(System.in);
        String str = scan.next();
		String asw = "ABC";
 
		if (str.equals(asw)) {
			System.out.println("ARC");
		} else {
			System.out.println("ABC");
		}
        scan.close();
    } Scanner scan = new Scanner(System.in); scan new Scanner(System.in) String str = scan.next(); str scan.next() scan.next scan String asw = "ABC"; asw "ABC" if (str.equals(asw)) {
			System.out.println("ARC");
		} else {
			System.out.println("ABC");
		} str.equals(asw) str.equals str asw {
			System.out.println("ARC");
		} System.out.println("ARC") System.out.println System.out System System.out "ARC" {
			System.out.println("ABC");
		} System.out.println("ABC") System.out.println System.out System System.out "ABC" scan.close() scan.close scan String[] args args public class Main{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String str = scan.next();
		String asw = "ABC";
 
		if (str.equals(asw)) {
			System.out.println("ARC");
		} else {
			System.out.println("ABC");
		}
        scan.close();
    }
} public class Main{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String str = scan.next();
		String asw = "ABC";
 
		if (str.equals(asw)) {
			System.out.println("ARC");
		} else {
			System.out.println("ABC");
		}
        scan.close();
    }
} Main
import java.util.Scanner;
 
public class Main{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String str = scan.next();
		String asw = "ABC";
 
		if (str.equals(asw)) {
			System.out.println("ARC");
		} else {
			System.out.println("ABC");
		}
        scan.close();
    }
}