import java.util.Scanner;

public class PaintHousesProgram {
	public static void main(String[] args) {
		int		n;

		// Get the user input
		System.out.println("How many students are on the team ? ");
		n = new Scanner(System.in).nextInt();

		// Compute the answer
		int goalAmount = (n * 1000) + (4 * 152);
		int houses = goalAmount / 256;

		// Display the answer
		System.out.println(houses + " houses must be painted.");
    }
}