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;
import java.io.IOException;
import java.util.Arrays;


public class SolutionC extends Solution {

	public SolutionC(String problemFileName) {
		super(problemFileName);
	}

	@Override
	public StringBuffer solve() {
		StringBuffer buffer = new StringBuffer();

		int array[] = {1,2,3,4,5,6,7};
		
		for (int i = 0; i < problem.count(); i++) {
			String s = problem.getCase(i);
			if(s!=null){
				RecyclePair pair = new RecyclePair(s);
				buffer.append("Case #").append(i + 1).append(": ");
				buffer.append(pair.countPair());
				buffer.append('\n');
			}
		}
		return buffer;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			File dir1 = new File(".");
			String filename;
			filename = dir1.getCanonicalPath() + "\\" + args[0];
			Solution solution = new SolutionC(filename);
			StringBuffer buffer = solution.solve();
			solution.saveToFile(buffer);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	


	

}

class RecyclePair{
	private int start, stop;
	private int length;
	public RecyclePair(String s){
		String[] token = s.split(" ");
		start = Integer.parseInt(token[0]);
		stop = Integer.parseInt(token[1]);
		length = token[0].length();
	}
	
	public int countPair(){
		int cnt = 0;
		for(int n=start;n<=stop;n++){
			for(int m=n+1;m<=stop; m++ ){
				String strN = String.valueOf(n);
				String strM = String.valueOf(m);
				if(isPair(strN, strM)){
					cnt++;
				}
			}			
		}
		return cnt;
	}
	
	private boolean isPair(String n, String m){
		char[] arrN = n.toCharArray();
		char[] arrM = m.toCharArray();
		
//		System.out.print(Arrays.toString(arrN)+"-");
//		System.out.println(Arrays.toString(arrM));
		
		for (int i = 1; i <= arrN.length; i++) {
			String strM = recycleArray(arrM, i);
			if(n.equals(strM)){
				return true;
			}
		}
		
		return false;
	}
	
	private String recycleArray(char[] array, int cycle){
		int length = array.length;
		char[] outarr = new char[length];			
		System.arraycopy(array, cycle, outarr, 0, length-cycle);
		System.arraycopy(array, 0, outarr, length-cycle, cycle);		
		return new String(outarr);
	}	
}
