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;
	}

}

/**
 *
 * @author amit
 */
import java.io.*;
import java.util.HashSet;
import java.util.Set;
//import java.util.Arrays;
//import java.math.BigInteger;

public class GCJ {

	BufferedReader rin;
	BufferedWriter wout;
	int numCases;

	public String calculate(long A, long B) {
		long count =0;
		for(long i=A;i<B;i++){
			String s = Long.toString(i);
			int Bl = Long.toString(B).length();
			int Al = s.length();
			//System.out.println("\n"+s);
			//System.out.println("\n" + Al + " " + Bl);
			Set<Long> set = new HashSet<Long>();
			for(int k=0;k<=Bl-Al;k++) {

				//System.out.println("\n"+s);

				
				for(int j=0;j<s.length();j++){
					//System.out.println("\nS: " + s);
					s = s.substring(s.length()-1) + s.substring(0, s.length()-1);
					//System.out.println("\nS new: " + s);
					long num = Long.parseLong(s);
					if (num>=A && num<=B && i<num) {
						if(!set.contains(num)) {
							set.add(num);
							//System.out.println("\nCounted: " + i + " " + num);
							count++;
						}
					}

				}
				//System.out.println("\nS newnew: " + s);
				s = "0" + s;
			}
		}
		return Long.toString(count);
	}

	public String getNextInput() {
		try {
			String line = rin.readLine();
			String[] aVars = line.split(" ");
			long A = Long.parseLong(aVars[0]);
			long B = Long.parseLong(aVars[1]);
			return calculate(A,B);

		} catch (IOException e) {
			System.out.println("File Error! Could not read line from file");
		}
		return null;
	}

	public void writeNextOutput(String s) {
		try {
			wout.write(s);
			wout.write("\n");
		} catch (IOException e) {
			System.out.println("Error! Could not write to the file!");
		}
	}

	public GCJ(String s1, String s2) {
		try {
			rin = new BufferedReader(
					new FileReader(s1));
			wout = new BufferedWriter(new FileWriter(s2));
			numCases = Integer.parseInt(rin.readLine());

			for(int i=1; i <= numCases; i++){
				System.out.println("case#" + i);
				String sout = getNextInput();
				sout = "Case #" + Integer.toString(i) + ":" + " " + sout;
				writeNextOutput(sout);
				//System.out.println("case#" + i);
			}
			rin.close();
			wout.close();
		} catch (IOException e) {
			System.out.println("File error");
			System.exit(0);
		}
	}

	public static void main(String[] args) {/*
        if (args.length!=2) {
        System.out.println("Enter input file!");
        System.exit(0);
        }*/
		GCJ a = new GCJ("infile.txt", "out.txt");
	}
}
