import java.util.*;
public class Solution {
public int rectCover(int target) {
if(target==0||target==1||target==2){
return target;
}
return rectCover(target-1)+rectCover(target-2);
}
}

import java.util.*;
public class Solution {
public int rectCover(int target) {
if(target==0||target==1||target==2){
return target;
}
return rectCover(target-1)+rectCover(target-2);
}
}