import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        String str = sc.next();

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

        String str = sc.next();

        if(str.equals("ABC")){
            System.out.println("ARC");
        }
        else{
            System.out.println("ABC");
        }
    }
} Main public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        String str = sc.next();

        if(str.equals("ABC")){
            System.out.println("ARC");
        }
        else{
            System.out.println("ABC");
        }
    } main {
        Scanner sc = new Scanner(System.in);

        String str = sc.next();

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

        String str = sc.next();

        if(str.equals("ABC")){
            System.out.println("ARC");
        }
        else{
            System.out.println("ABC");
        }
    }
} public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        String str = sc.next();

        if(str.equals("ABC")){
            System.out.println("ARC");
        }
        else{
            System.out.println("ABC");
        }
    }
} Main
import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        String str = sc.next();

        if(str.equals("ABC")){
            System.out.println("ARC");
        }
        else{
            System.out.println("ABC");
        }
    }
}