import java.util.*;
import java.io.*;

public class recycled_numbers {
	public static void main(String[]a) throws Exception{
		
		Scanner f = new Scanner(new File(a[0]));
		int result=0;
		int A,B;
		String n,m;
		HashSet<String> s=new HashSet<String>();
		
		int T=f.nextInt();	//T total case count
		for (int t=1; t<=T;t++){//for each case t
			
			s.clear();
			result=0;				//reset
			A=f.nextInt();B=f.nextInt();	//get values for next case
			
			if (A==B)result=0;//remove case not meeting problem limits 
			else{
				for(int i=A;i<=B;i++){//for each int in range
					n=Integer.toString(i);
					m=new String(n);
					//System.out.println(n);
					for (int j=1;j<n.length();j++){//move each digit to the front & test
						m = m.substring(m.length()-1)+m.substring(0,m.length()-1);
						if(m.matches("^0+[\\d]+")!=true &&
								Integer.parseInt(m)<=B &&
								Integer.parseInt(n)<Integer.parseInt(m)){
							s.add(new String(n+","+m));
							//result++;
							//System.out.println(" matched: "+m);
						}
						
					}
				}
				result = s.size();
			}

			//display output
			System.out.println("Case #" + t + ": " + result);
		}
	}
}
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.util.HashSet;
import java.util.Set;

public class RecycledNumbers {

	private RecycledNumbers() {

	}

	public void solveInput(final InputStream input, final OutputStream output)
			throws IOException {

		final BufferedReader reader = new BufferedReader(new InputStreamReader(
				input));
		final BufferedWriter writer = new BufferedWriter(
				new OutputStreamWriter(output));

		final int numTestCase = Integer.valueOf(reader.readLine().trim());

		System.out.println("Total Test Cases: " + numTestCase);

		String line = null;
		int caseNo = 1;
		while ((line = reader.readLine()) != null) {
			final String[] words = line.trim().split(" ");

			final long A = Long.parseLong(words[0]);
			final long B = Long.parseLong(words[1]);

			final Set<String> resultSet = new HashSet<String>();

			for (long M = B; M >= A; M--) {
				final String str1 = String.valueOf(M);
				if (str1.length() == 1) {
					continue;
				}
				for (int max = str1.length() - 1; max >= 1; max--) {
					final String first = str1.substring(0, str1.length() - max);
					final String last = str1.substring(str1.length() - max,
							str1.length());

					final String str2 = last + first;
					final long N = Long.valueOf(str2);

					if (A <= N && N < M && M <= B && str1.charAt(0) != '0'
							&& str2.charAt(0) != '0') {

						/*
						 * System.out.println(A + " <= " + N + "(" + str2 +
						 * ") < " + M + "(" + str1 + ") <= " + B);
						 */
						resultSet.add(str1 + str2);
					}
				}
			}

			if (caseNo > 1) {
				writer.write("\n");
			}

			final String text = "Case #" + (caseNo++) + ": " + resultSet.size();
			System.out.println(text);
			writer.write(text);
			writer.flush();
		}
		writer.close();
		reader.close();
	}

	public static void main(final String[] args) throws Exception {
		final RecycledNumbers number = new RecycledNumbers();

		final File outputFile = new File("output/C-large.out");
		if (outputFile.exists()) {
			outputFile.delete();
		}
		final FileOutputStream fos = new FileOutputStream(outputFile);

		number.solveInput(
				SpeakingInTongues.class.getResourceAsStream("C-large.in"), fos);

	}

}
