import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String input = in.nextLine();
        String s = "ABC" , t = "ARC";

        if (input.equals(s)) {
            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 in = new Scanner(System.in);
        String input = in.nextLine();
        String s = "ABC" , t = "ARC";

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

        if (input.equals(s)) {
            System.out.println("ARC");
        } else {
            System.out.println("ABC");
        }
    } main {
        Scanner in = new Scanner(System.in);
        String input = in.nextLine();
        String s = "ABC" , t = "ARC";

        if (input.equals(s)) {
            System.out.println("ARC");
        } else {
            System.out.println("ABC");
        }
    } Scanner in = new Scanner(System.in); in new Scanner(System.in) String input = in.nextLine(); input in.nextLine() in.nextLine in String s = "ABC" s "ABC" t = "ARC"; t "ARC" if (input.equals(s)) {
            System.out.println("ARC");
        } else {
            System.out.println("ABC");
        } input.equals(s) input.equals input s {
            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 in = new Scanner(System.in);
        String input = in.nextLine();
        String s = "ABC" , t = "ARC";

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

        if (input.equals(s)) {
            System.out.println("ARC");
        } else {
            System.out.println("ABC");
        }
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String input = in.nextLine();
        String s = "ABC" , t = "ARC";

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

