import java.util.Scanner;

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

        if (S.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 scanner = new Scanner(System.in);
        String S = scanner.next();

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

        if (S.equals("ABC")) {
            System.out.println("ARC");
        } else {
            System.out.println("ABC");
        }
    } main {
        Scanner scanner = new Scanner(System.in);
        String S = scanner.next();

        if (S.equals("ABC")) {
            System.out.println("ARC");
        } else {
            System.out.println("ABC");
        }
    } Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) String S = scanner.next(); S scanner.next() scanner.next scanner 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) {
        Scanner scanner = new Scanner(System.in);
        String S = scanner.next();

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

        if (S.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 scanner = new Scanner(System.in);
        String S = scanner.next();

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