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 DeTerminator {

	public DeTerminator(){ }

	public int determine(String[] inputArray){
		int numGooglers = Integer.parseInt(inputArray[0]);
		int allowableSurprising = Integer.parseInt(inputArray[1]);
		int bestScore = Integer.parseInt(inputArray[2]);
		int surprising = 0;
		int notSurprising = 0;

		int total = 0;

		for(int i = 3; i < (numGooglers+3); i++){
			total = Integer.parseInt(inputArray[i]);
			int comparisonScore = (bestScore - 1)*2 + bestScore;
			int comparisonScoreMinus2 = comparisonScore-2;
			if(bestScore == 1) comparisonScore = comparisonScoreMinus2 = 1;
			if(bestScore == 0) comparisonScore = comparisonScoreMinus2 = 0;
			if(total >= comparisonScore) notSurprising++;
			if((total >= (comparisonScoreMinus2)) && (total < (comparisonScore))) surprising++;
			if(surprising >= allowableSurprising) surprising = allowableSurprising;
		}
		return notSurprising + surprising;
	}

}
