import java.util.*;
public class Main {
public static void main(String args[]) {
Scanner sc=new Scanner(System.in);
int t=sc.nextInt();
while(t–>0){
int n=sc.nextInt();
int m=sc.nextInt();
System.out.println(count(m,n));
}
}
static int count(int m,int n){
if(n==1 ){
return 1;
}
if(n==m){
return 2;
}
if(m<1){
return 0;
}
return count(m,n-1)+count(m,n-m);
}
}
