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

public class Recycle {

	private static HashMap<Integer, HashSet<Integer>> map = new HashMap<Integer, HashSet<Integer>>();
	private static HashSet<Integer> toSkip = new HashSet<Integer>();
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner reader = new Scanner(System.in);
		int T = reader.nextInt();
		for (int tc = 1; tc <= T; tc++) {
			int a = reader.nextInt();
			int b = reader.nextInt();
			long before = System.currentTimeMillis();
			int res = doit(a, b);
			System.out.printf("Case #%d: %d\n", tc, res);
			long after = System.currentTimeMillis();
//			System.out.println("time taken: " + (after - before));
		}
	}

	private static int doit(int a, int b) {
		int count = 0;
		HashSet<Integer> skip = new HashSet<Integer>(toSkip);
		for (int i = a; i <= b; i++) {
			if (skip.contains(i))
				continue;
			HashSet<Integer> arr = generate(i);
//			if(arr.size() > 1) {
//				map.put(i, arr);
//			}
			// System.out.println(i + " --> " +
			// Arrays.deepToString(arr.toArray()));
			int temp = 0;
			if (arr.size() > 1) {
				for (int x : arr) {
					if (x >= a && x <= b) {
						temp++;
						skip.add(x);
					}
				}
				count += temp * (temp - 1) / 2;
			}
//			System.out.println("not skipping " + i + " gen: " + arr.size()+ " " + (temp * (temp - 1) / 2));
		}
		return count;
	}

	private static HashSet<Integer> generate(int num) {
		if(map.containsKey(num)) {
			HashSet<Integer> list = map.get(num);
			return list;
		}
		HashSet<Integer> list = new HashSet<Integer>();
		String s = "" + num;
		list.add(num);
		int len = s.length();
		for (int i = 1; i < len; i++) {
			String temp = s.substring(i) + s.substring(0, i);
			// System.out.println("temp: " + temp);
			if (temp.charAt(0) == '0')
				continue;
			int x = Integer.parseInt(temp);
			if( x <= 2000000) {
				list.add(x);
			}
		}
		if(list.size() > 1) {
			map.put(num, list);
		} else {
			toSkip.add(num);
		}
		return list;
	}

}

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.Arrays;
import java.util.TreeSet;

public class Main {

	public static void main(String[] args) throws Throwable {
		long init = System.currentTimeMillis();
		int MAX = 2000001;
		//int MAX = 201;
		int arr[][] = new int[MAX][];
		{
			for (int i = 1; i < MAX; i++) {
				TreeSet<Integer> set = new TreeSet<Integer>();
				set.add(i);
				String num = Integer.toString(i);
				for (int j = 1; j < num.length(); j++) {
					String newNum = num.substring(j) + num.substring(0, j);
					if (newNum.charAt(0) != '0') {
						int n = Integer.parseInt(newNum);
						if (n > i && !set.contains(n)) {
							set.add(n);
						}
					}
				}
				set.remove(i);
				arr[i] = new int[set.size()];
				{
					int j = 0;
					for (Integer n : set) arr[i][j++] = n;
				}
			}
		}
		
		long end = System.currentTimeMillis();
		BufferedReader in = new BufferedReader(new FileReader("C-small-attempt0.in"));
		
		for (int i = 0, n = Integer.parseInt(in.readLine().trim()); i < n; i++) {
			String s[] = in.readLine().trim().split(" +");
			int a = Integer.parseInt(s[0]), b = Integer.parseInt(s[1]);
			int c = 0;
			for (int j=a; j<=b; j++) {
				for (int k=0, d; k<arr[j].length && (d=arr[j][k]) <= b; k++) c++;
			}
			System.out.println("Case #"+(i+1)+": "+c);
		}
		//System.out.printf("%.2f seconds%n", (end - init) / 1000.);
	}
}
