import java.util.Scanner;

class ToOrdinal {
    public  static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        toOrdinal to = new toOrdinal();

        System.out.print("0以上の整数を入力:");
        String x = sc.nextLine();

        if(Integer.parseInt(x) < 0) {
            System.out.println("0以上を入力してくだい");
            System.exit(0);
        }

        System.out.println(to.check(x));
    }
}

class toOrdinal {
    public String check(String x) {
        String n = x.substring(x.length() - 1);
        switch (n) {
            case "1":
                return x + "st";

            case "2":
                return x + "nd";

            case "3":
                return x + "rd";

            default:
                return x + "th";
        }
    }
}