import java.util.*;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		long N = sc.nextLong();
		
		long one = 316L, two = 368L, ans = one;
		
		for(long i = 1L; i < N; i++) {
			ans+=((ans + 52) - ans);
		}
		
		System.out.println(ans);
	}
}