

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Scanner;

public final class Main {

    public static void main(String[] args) {
        final Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
        final String last = in.nextLine();
        System.out.println("ABC".equals(last) ? "ARC" : "ABC");
    }
} import java.io.BufferedReader; BufferedReader java.io import java.io.InputStreamReader; InputStreamReader java.io import java.util.Scanner; Scanner java.util public final class Main {

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

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

    public static void main(String[] args) {
        final Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
        final String last = in.nextLine();
        System.out.println("ABC".equals(last) ? "ARC" : "ABC");
    }
} Main


import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Scanner;

public final class Main {

    public static void main(String[] args) {
        final Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
        final String last = in.nextLine();
        System.out.println("ABC".equals(last) ? "ARC" : "ABC");
    }
}
