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 codejamc;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Iterator;

/**
 *
 * @author strigazi
 */
public class TextFile implements Iterable<String> {

  // Used by the TextFileIterator class below
  final String filename;

  public TextFile(String filename) { 
    this.filename = filename; 
  }

  // This is the one method of the Iterable interface
  public Iterator<String> iterator() { 
    return new TextFile.TextFileIterator(); 
  }


  // This non-static member class is the iterator implementation
  class TextFileIterator implements Iterator<String> {

    // The stream we're reading from
    BufferedReader in;

    // Return value of next call to next()
    String nextline;

    public TextFileIterator() {
      // Open the file and read and remember the first line.
      // We peek ahead like this for the benefit of hasNext().
      try {
        in = new BufferedReader(new FileReader(filename));
        nextline = in.readLine();
      } catch(IOException e) { 
        throw new IllegalArgumentException(e); 
      }
    }

    // If the next line is non-null, then we have a next line
    public boolean hasNext() { 
      return nextline != null; 
    }

    // Return the next line, but first read the line that follows it.
    public String next() {
      try {
        String result = nextline;

        // If we haven't reached EOF yet
        if (nextline != null) {  
          nextline = in.readLine(); // Read another line
          if (nextline == null) 
            in.close();             // And close on EOF
        }

        // Return the line we read last time through.
        return result;
      } catch(IOException e) { 
        throw new IllegalArgumentException(e); 
      }
    }

    // The file is read-only; we don't allow lines to be removed.
    public void remove() { 
      throw new UnsupportedOperationException(); 
    }
  }
}
