import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package recyclednumbers;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.HashSet;

/**
 *
 * @author Madhav
 */



public class RecycledNumbers {

    /**
     * @param args the command line arguments
     */
    
    public static HashSet<String> set;
    public static void main(String[] args) throws Exception {
        FileIO fileHandler = new FileIO();
        int totalTestCases = Integer.parseInt(fileHandler.readLine());

        for (int tc = 0; tc < totalTestCases; tc++) {
            set  = new HashSet<String>();
            String input = fileHandler.readLine();
            String nm[] = input.split(" ");
            int start = Integer.valueOf(nm[0]);
            int end = Integer.valueOf(nm[1]);
            for(int i=start; i<=end; i++){
                 String currVal = String.valueOf(i);
                 countPairs(currVal, start, end, nm);
            }
           
            fileHandler.writeLine(String.valueOf(set.size()));
        }
        fileHandler.closeFileIO();
    }
    
    public static void countPairs(String input, int start, int end, String[] nm){
        String clonedValue = new String(input);
        if(nm[1].length() <= 1)
            return;
        else{
            int length = input.length();
            for(int i=0; i<length;i++){
                String rotated = rotate(input);
                int calValue = Integer.valueOf(rotated);
                if(   rotated.charAt(0) != '0' && 
                        calValue <= end && 
                        calValue >= start && 
                        !rotated.equals(clonedValue)
                        ){
                    if(Integer.valueOf(clonedValue) < Integer.valueOf(rotated))
                       set.add(clonedValue+"-"+rotated);
                    else
                       set.add(rotated+"-"+clonedValue);
                }
                   
                input = rotated;
            }
        }
    }
    
    public static String rotate(String input){
        return input.substring(1) + input.charAt(0);
    }
    
    
}


/*
 * File IO is used to read and Write - Keep it simple.
 */
class FileIO {

    private FileReader inFileReader;
    private FileWriter outFileWriter;
    private BufferedReader br = null;
    private BufferedWriter bw = null;
    private int lineNumber = 1;

    public FileIO() throws Exception {
        inFileReader = new FileReader("C:\\CodeJam2012\\in.txt");
        br = new BufferedReader(inFileReader);

        outFileWriter = new FileWriter("C:\\CodeJam2012\\out.txt");
        bw = new BufferedWriter(outFileWriter);
    }

    public FileIO(String in, String out) throws Exception {
        inFileReader = new FileReader(in);
        br = new BufferedReader(inFileReader);

        outFileWriter = new FileWriter(out);
        bw = new BufferedWriter(outFileWriter);
    }

    /*
     * This procedure returns null if all the rows are read from input file.
     */
    public String readLine() throws Exception {
        return br.readLine();
    }

    /*
     * This procedure writes a line to output file as per the google codejam
     * standard
     */
    public void writeLine(String line) throws Exception {
        bw.write("Case #" + lineNumber + ": " + line + "\r\n");
        lineNumber++;
    }

    public void closeFileIO() throws Exception {
        br.close();
        bw.flush();
        bw.close();
    }
}