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 test.com;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Stack;

public class Qual2012C {


	public static void main(String[] args) throws Exception {
		FileInputStream fos = new FileInputStream("c:/sanker/workspace/input2/C-small-attempt0.in");
		BufferedReader buf = new BufferedReader(new InputStreamReader(fos));
		String str = "";
		int N0;

		str = buf.readLine();
		N0 = Integer.parseInt(str);
		for(int cnti=0; cnti<N0 ; cnti++) {
			str = buf.readLine();
			if(str == null) System.exit(0);
			String[] chars = str.split(" ");
			int A, B;
			A = Integer.parseInt(chars[0]);
			B = Integer.parseInt(chars[1]);
			int num=0, count=0;
			for(int j=A;j<B;j++) {
				num = j;
				String num1 = String.valueOf(num);
				String orgnum1 = String.valueOf(num);
				int numlen = num1.length();
				for(int k=1;k<=numlen;k++) {
					num1 = orgnum1.substring(orgnum1.length()-k)+""+orgnum1.substring(0, orgnum1.length()-k);
					if(num1.equals(String.valueOf(num)))
						break;
					if(num < Integer.parseInt(num1) && Integer.parseInt(num1) <= B ) {
						count++;
					}
				}
			}
			
			System.out.println("Case #"+(cnti+1)+": "+count);
			
		}
		
	}
	
	

}
