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.File;

public class RecycledNumbers {
    
    public static void main(String[] args)
    {
        try
        {
            FileReader fr = new FileReader(new File(args[0]));
            PrintResult pr = new PrintResult(args[1]);
            process(fr, pr);
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
        
    }
    
    public static void process(FileReader fr, PrintResult pr)
    {
        int numCases;
        int[] in;
        try
        {
            numCases = fr.nextInt();
            for (int i = 0; i < numCases; i++)
            {
                in = fr.nextIntArray();
                pr.printLine(i, solve(in[0],in[1]));
            }
            pr.close();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
    
    public static String solve(int a, int b)
    {
        int count = 0;
        char[] achar = Integer.toString(a).toCharArray();
        int m = 0;
        if(achar.length > 1)
        {
            for(int n = a; n < b+1; n++)
            {
                for(int j = 1; j < Integer.toString(n).length(); j++)
                {
                    m = rearrange(n,j);
                    if(m > n && m < b + 1)
                    {
                        int mlength = Integer.toString(m).toCharArray().length;
                        int nlength = Integer.toString(n).toCharArray().length;
                        if(mlength == nlength)
                        {
                            count++;
                        }
                        if(b == 2222)
                        {
                            System.out.println(n + " " + m + " " + j);
                        }
                    }
                }
            }
        }
        return Integer.toString(count);
    }
    
    public static int rearrange(int in, int amount)
    {
        char[] temp = Integer.toString(in).toCharArray();
        char[] result = new char[temp.length];
        for(int i = 0; i < temp.length; i++)
        {
            result[i] = temp[(temp.length-amount+i)%temp.length];
        }
        return Integer.parseInt(new String(result));
    }
}
