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 hasnaer.puzzles.codejam;

import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Scanner;

/**
 *
 * @author hasnae rehioui
 */
public class RecycledNumbers {

    public static Map<Integer, List<Integer>> _map  = new HashMap<Integer, List<Integer>>();
    
    
    static{    
        for(int i = 0; i < 3000; i++){
           if(i <= 10){
               _map.put(i, new ArrayList<Integer>());
           } 
           else{
               String _str = Integer.toString(i);
               List<Integer> _list = new ArrayList<Integer>();
               for(int j = 1; j < _str.length(); j++){
                   _str = _str.substring(1).concat(_str.substring(0, 1));
                   int _val = Integer.parseInt(_str);
                   if(_val > i){
                       _list.add(_val);
                   }
               }
               _map.put(i, _list);
           }
        }
    }
    
    
    public static void main(String[] args) throws Exception {
        
//        Scanner _input = new Scanner(System.in);
        Scanner _input = new Scanner(new FileInputStream("C-small-attempt0.in"));
//        BufferedWriter _writer = new BufferedWriter(new OutputStreamWriter(System.err));
        BufferedWriter _writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("C-small-attempt0.out")));
                        
        int _t = _input.nextInt();
        for(int i = 0; i < _t; i++){
            int _a = _input.nextInt();
            int _b = _input.nextInt();
            
//            System.out.println(String.format("_a:%s;_b:%s", _a, _b));
            
            int _cnt = 0;
            for(int j = _a; j <= _b; j++){
                List<Integer> _list = _map.get(j);
                for(Integer _num : _list){
                    if(_num <= _b){
                        _cnt++;
//                        System.out.println(String.format("[%s,%s]", j, _num));
                    }
                }
            }
            
            _writer.write(String.format("Case #%s: %s\n", i + 1, _cnt));
        }
        
        _writer.close();
    }
    
}