public class Fenpingguo {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
// 苹果个数
int m = sc.nextInt();
// 盘子个数
int n = sc.nextInt();
System.out.println(fenpingguo(m, n));
}
private static int fenpingguo(int m, int n){
if(m < 2 || n < 2){
return 1;
}
if(m < n){
return fenpingguo(m, m);
}
return fenpingguo(m, n-1) + fenpingguo(m-n, n);
}
}