import java.util.Scanner;

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

public class Main {
    public static void main(final String[] args) {
        Scanner scan = new Scanner(System.in);
        String contest = scan.nextLine();
        if(contest.equals("ABC")) {
            System.out.println("ARC");
            scan.close();
            return;
        } else {
            System.out.println("ABC");
            scan.close();
            return;
        }
    }
}