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;
    }
}



public class Problem {

	public int googlers;
	public int surprisingTriplets;
	public int bestResult;
	public int[] totals;
	
	public Problem(int googlers, int suprisingTriplets, int bestResult, int[] totals) {
		super();
		this.googlers = googlers;
		this.surprisingTriplets = suprisingTriplets;
		this.bestResult = bestResult;
		this.totals = totals;
	}

	public int solve() {
		
		boolean[] bestTotals = new boolean[totals.length];
		
		for (int i = 0; i < bestTotals.length; i++) {
			bestTotals[i] = tryFindingAnswer(totals[i], false);
		}
		
		// Try to find surprising results
		int i = 0;
		int surprising = surprisingTriplets;
		while (i < bestTotals.length && surprising > 0) {
			
			if (!bestTotals[i]) {
				bestTotals[i] = tryFindingAnswer(totals[i], true);
				
				if (bestTotals[i]) {
					surprising--;
				}
			}		
			
			i++;
		}
		
		int finalResult = 0;
		for (boolean b : bestTotals) {
			if (b) {
				finalResult++;
			}
		}
		
		return finalResult;
	}
	
	private boolean tryFindingAnswer(int total, boolean isSurprising) {
		
		if (total == 0) {
			return (bestResult == 0);
		}
		
		total -= bestResult;
		if (total >= 20) {
			return true;
		} 
		
		int lowLimit = bestResult - 1;
		int highLimit = bestResult + 1;
		
		if (isSurprising) {
			lowLimit--;
			highLimit++;
		}
		
		if (lowLimit < 0) {
			lowLimit = 0;
		}
		
		if (highLimit > 10) {
			highLimit = 10;
		}
		
		if (highLimit * 2 < total) {
			return true;
		}		
		
		for (int i = lowLimit; i <= highLimit; i++) {
			int tempOtherValue = total - i;
			
			if (tempOtherValue >= lowLimit && tempOtherValue <= highLimit) {
				return true;
			}
		}
		
		return false;
	}
}
