import java.util.*;

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

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