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;
	}

}

package Test1;


import java.io.BufferedReader;
import java.io.InputStreamReader;




public class Test1 {

	public static void main(String[] args) {

	String temp1 = null;
	String temp2 = null;
	int n,a,b; 
	
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in)) ;
    try {
    	
    	String str = in.readLine();
    	int result;
    	n = Integer.parseInt(str.trim());
    	for (int i = 1; i <= n; i++) {
    		str = in.readLine();
    		String[] temp = str.split(" ");
    		a = Integer.parseInt(temp[0]);
    		b = Integer.parseInt(temp[1]);
    		result = 0;
    		for (int j=a; j<=b;j++){
    			temp1 = (new Integer(j)).toString();
    			for (int k=1; k<temp1.length(); k++) {

    				String newtemp = temp1.substring(k)+temp1.substring(0, k);
    				int currentnum = Integer.parseInt(newtemp);
    				if (currentnum <= j) continue;
    				temp2 = (new Integer(currentnum)).toString();
    				if (temp2.length() != newtemp.length()) continue;
    				if (currentnum < a || currentnum > b) continue;
    				//System.out.println("Case #"+i+": "+j+":"+currentnum+";;;;;;;"+temp1.substring(0, k)+"====="+temp1.substring(k));
    				result++;
    			    
    			}
    			
    		}
    		System.out.println("Case #"+i+": "+result);
    		//System.out.println("");
    	}
    } catch (Exception e) {
    	
    }
	}
}

