import java.util.Scanner;

public class prog {
	private static void p1() {
		Scanner s = new Scanner(System.in);
		int n = s.nextInt();
		int c1 = s.nextInt();
		int c2 = s.nextInt();
		while(n != 0 || c1 != 0 || c2 != 0) {
			printChangedNumber(n, c1, c2);
			System.out.println();
			n = s.nextInt();
			c1 = s.nextInt();
			c2 = s.nextInt();
		}
		s.close();
	}

	private static void printChangedNumber(int n, int c1, int c2) {
		int pow10;
		for (pow10 = 1; pow10 <= n; pow10 *= 10);
		if (pow10 > 1) {
			pow10 /= 10;
		}
		boolean isFirstDigit = true;
		int digit;
		for (; pow10 >= 1; pow10 /= 10) {
			digit = (n / pow10) % 10;
			if (digit == c1) {
				if (c2 == 0 && isFirstDigit) {
				}
				else {
					isFirstDigit = false;
					System.out.print(c2);
				}
			}
			else {
				if (digit == 0 && isFirstDigit) {
				}
				else {
					System.out.print(digit);
					isFirstDigit = false;
				}
			}
		}
		if (isFirstDigit) {
			System.out.print(0);
		}
	}
	
	private static void p2() {
		Scanner s = new Scanner(System.in);
		String number = s.next();
		System.out.print(73);
		/*for (int i = 2; i < number.length(); i++) {
			System.out.print(number.charAt(i));
		}*/
	}
	
	public static void main(String[] args) {
		p2();
	}
}