import java.util.HashSet;
import java.util.Scanner;

public class C {

	static HashSet p = new HashSet();
	static int low;
	static int high;
	int count = 0;

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int no = sc.nextInt();

		for (int i = 1; i <= no; i++) {

			p.clear();
			low = sc.nextInt();
			high = sc.nextInt();

			for (int l = low; l <= high; l++) {
				recycle(l);
			}
			System.out.println("Case #" + i + ": " + p.size());

		}
	}

	public static void recycle(int no) {

		String s = Integer.toString(no);
		for (int i = 0; i < s.length(); i++) {
			String rec = s.substring(i) + s.substring(0, i);
			int r = Integer.parseInt(rec);
			if (r != no && r >= low && r <= high) {
				int min = Math.min(r, no);
				int max = Math.max(r, no);
				String a = Integer.toString(min) + "" + Integer.toString(max);
				p.add(a);

			}
		}

	}
}

public class recycled {
    public static void main(String args[]) {
	java.util.Scanner s = new java.util.Scanner(System.in);
	int T = s.nextInt();
	for (int n = 1; n <= T; n++) 
	    System.out.println("Case #" + n + ": " + f(s.nextInt(), s.nextInt()));
    }

    public static int f(int a, int b) {
	String A = "" + a;
	String B = "" + b;
	java.util.HashSet<String> s = new java.util.HashSet<String>();

	for (int i = a; i <= b; i++) {
	    String I = "" + i;
	    for (int j = 1; j < I.length(); j++) {
		String x = I.substring(j) + I.substring(0, j);
		if (A.compareTo(x) <= 0 && B.compareTo(x) >= 0 && !I.equals(x))
		    if (x.compareTo(I) > 0) 
			s.add(x+":"+I);
		    else
			s.add(I+":"+x);
	    }
	}

	return s.size();
    }
}