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 dance;

/**
 *
 * @author ALEX
 */
public class Scores {
    int first;
    int second;
    int third;
    int total;
    boolean s;
    public Scores(int total)
    {
        this.total=total;
    }
    public int getMaxS()
    {
        int max=0;
        for(int i=0;i<=10;i++)
            for(int j=i;(j<=i+2)&&(j<=10);j++)
                for(int k=j;(k<=j+2)&&(k<=i+2)&&(k<=10);k++)
                    if((i+j+k==total)&&(i+2==j||i+2==k)){
                        if(i>max)
                            max=i;
                        if(j>max)
                            max=j;
                        if(k>max)
                            max=k;
                    }
        return max;
    }
    public int getMaxUnS()
    {
        int max=0;
        for(int i=0;i<=10;i++)
            for(int j=i;(j<=i+2)&&(j<=10);j++)
                for(int k=j;(k<=j+2)&&(k<=i+2)&&(k<=10);k++)
                    if((i+j+k==total)&&(i+2!=j&&i+2!=k)){
                        if(i>max)
                            max=i;
                        if(j>max)
                            max=j;
                        if(k>max)
                            max=k;
                    }
        return max;
    }
    public void setFirstSurprize()
    {
        for(int i=0;i<=10;i++)
            for(int j=i;(j<=i+2)&&(j<=10);j++)
                for(int k=j;(k<=j+2)&&(k<=i+2)&&(k<=10);k++)
                    if((i+j+k==total)&&(i+2==j||i+2==k)){
                        first=i;
                        second=j;
                        third=k;
                        s=true;
                        return;
                    }                        
    }
    public void setFirstNormal(){
        for(int i=1;i<=10;i++)
            for(int j=i;(j<=i+2)&&(j<=10);j++)
                for(int k=j;(k<=j+2)&&(k<=i+2)&&(k<=10);k++)
                    if((i+j+k==total)&&(i+2==j||i+2==k)){}
                    else {
                        first=i;
                        second=j;
                        third=k;
                        s=false;
                        return;
                    }
    }
}
