import java.util.*;

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

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