import java.util.*;

public class B {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int T = sc.nextInt();
        B th = new B();
        for (int i = 0; i < T; i++) {
            int n = sc.nextInt();
            int s = sc.nextInt();
            int p = sc.nextInt();
            int[] t = new int[n];
            for (int j = 0; j < n; j++) {
                t[j] = sc.nextInt();
            }
            int c = th.getAnswer(s,p,t);
            System.out.println("Case #" + (i+1) + ": " + c);
        }
    }
    public int getAnswer(int s, int p, int[] t) {
        int A1 = p + p-1+p-1;
        int A2 = p + p-2+p-2;
        if (A1 < 0)
            A1 = 0;
        if (A2 < 0)
            A2 = 1;
        int remain = s;
        int count = 0;
        int n = t.length;
        for (int i = 0; i < n; i++) {
            if (t[i] >= A1) {
                count++;
            } else if (t[i] < A1 && t[i] >= A2) {
                if (remain > 0) {
                    remain--;
                    count++;
                }
            }
        }
        return count;
    }
}


/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package IO;

import java.util.Arrays;

/**
 *
 * @author dannocz
 */
public class Triplet {
    
    private int x;
    private int y;
    private int z;

    public Triplet(int x, int y, int z) {
        int[] array={x,y,z};
        Arrays.sort(array);
        
        this.x = array[0];
        this.y = array[1];
        this.z = array[2];
    }
    
    public boolean compliesWithP(int p){
        if(x>=p || y>=p || z>=p)
            return true;
        return false;
    }
    
    @Override
    public boolean equals(Object object){        
         Triplet triplet2= (Triplet)object;
        
         return (this.x==triplet2.x && this.y==triplet2.y && this.z==triplet2.z);
            
    }

    @Override
    public int hashCode() {
        int hash = 7;
        hash = 47 * hash + this.x;
        hash = 47 * hash + this.y;
        hash = 47 * hash + this.z;
        return hash;
    }
   
    
    public String toString(){
        return x+","+y+","+z;
    }

    public boolean surprised() {
       return validPair(x,y) && validPair(y,z) && validPair(x,z);
    }
    
    public boolean validPair(int y1, int y2){
         int r= y1-y2;
        return (r<=1 && r>=-1);
    }
    
}
