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.awt.Point;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;


public class RecycledNumbers {

	
	public static void main(String[] args) throws FileNotFoundException, IOException {
		int t = 0;
		FileInputStream fstream = new FileInputStream(new File(args[0]));
		DataInputStream in = new DataInputStream(fstream);
		BufferedReader br = new BufferedReader(new InputStreamReader(in));
		String line = br.readLine();
		t = Integer.parseInt(line);
		System.out.println(t);
		String output;
		FileWriter fw = new FileWriter(new File("C-small-attempt0.out"));
		HashSet<Point> points = new HashSet<Point>();
		
		for(int i = 0; i < t; i++) {
			int counter = 0;
			line = br.readLine();
			
			String[] parameters = line.split(" ");
			int a = Integer.parseInt(parameters[0]);
			System.out.println("a: " + a);
			int number = a;
			int possibleRecycled = 0;
			int b = Integer.parseInt(parameters[1]);
			System.out.println("b: " + b);
			int numberOfDigits = 1;
			while(a/(int)Math.pow(10, numberOfDigits) != 0){
				numberOfDigits++;
			}
		
			while(number <= b){
				int[] digits = new int[numberOfDigits - 1];
				int holder = number;
				int j = 0;
				while (j < numberOfDigits - 1){
					digits[j] = holder % 10;
					holder = holder / 10;
					j++;
				}
				boolean next = true;
				for(int k = 0; k < digits.length && next ; k++){
					if(digits[k] * Math.pow(10, numberOfDigits - 1) < b){
						next = false;
					}
				}
				if(!next){
					int digitStep = 1;
					int lastDigit = 0;
					possibleRecycled = number;
					while(digitStep < numberOfDigits){
						lastDigit = possibleRecycled % 10;
						possibleRecycled = (int) (lastDigit * Math.pow(10, numberOfDigits - 1) + ( possibleRecycled / 10));
						if(possibleRecycled > number && possibleRecycled <= b && !points.contains(new Point(number,possibleRecycled))){
							points.add(new Point(number,possibleRecycled));
							counter++;
//							System.out.println(number + "   " + possibleRecycled );
						}
						digitStep++;
					}
				}
				number++;
			}
			
			output = "Case #" + (i + 1) + ": " + counter + "\n";		
			fw.write(output);
			points.clear();
		}
		fw.flush();
		fw.close();
	}

}
