import java.util.Scanner;

public class No526 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int M = sc.nextInt();
		
		System.out.println(fibonacci(N) % M);
	}
	
	public static int fibonacci(int N) {
		if(N == 1) {
			return 0;
		}else if(N == 2) {
			return 1;
		}else {
			return fibonacci(N -1) + fibonacci(N -2);
		}
	}
}