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;
	}

}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
//c prob 
import java.io.*;
import java.util.StringTokenizer;

/**
 *
 * @author abood
 */
public class test {
  static  int count =0,s=0;
    public static void main(String[] args) throws IOException {
        BufferedReader br =new BufferedReader(new FileReader("C-small-attempt0.in"));
   PrintWriter out =new PrintWriter(new BufferedWriter(new FileWriter("C-small-attempt0.out")));
        int loop=Integer.parseInt(br.readLine());
        for (int i = 1; i <=loop; i++) {
            count=0;
            StringTokenizer st=new StringTokenizer(br.readLine());
           int x=Integer.parseInt(st.nextToken());
           int y=Integer.parseInt(st.nextToken());
            for (int j = x; j < y; j++) {
                check(j,y);
            }
      out.println("Case #"+i+": "+count);
        }
        out.close();                                  // close the output file
    System.exit(0);  
    }
    public static void check(int xx,int yy){
        String res="";
        String x=""+xx;
        int l=x.length();
        String t="";
        for (int i = 1; i < l; i++) {
            t=x.substring(i, l)+x.substring(0,i);
            int m=Integer.parseInt(t);
            if(m<=yy&&m>xx){
               // System.out.println(xx+" "+t);
                if(res.contains(t))continue;
                res+=" "+t;
                count++;
                }
            
        }
    }
}
