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