import java.util.Scanner;

class no526{
	public static void main(String[] args) {
		Scanner stdIn=new Scanner(System.in);
		long n=stdIn.nextLong(),m=stdIn.nextLong(),a[]=new long[3];
		int i,j;
		for(i=0;i<2;i++) a[i]=i;
		if(2>n) System.out.print(0);
		else if(3>n) System.out.print(1);
		else {
			for(i=2;i<n;i++) {
				a[2]=(a[0]+a[1])%m;
				for(j=0;j<2;j++) a[j]=a[j+1];
			}
			System.out.print(a[2]);
		}
	}
}