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);
		}
	}
}
//RECYCLED NUMBERS

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;

//Importing classes / interface from java.io pacckage to work with files

public class RecycledNumbers
{
	static boolean checkForNewM(long temp , long [] m , long totalMForThisN)
	{
		for(int i = 0 ; i < totalMForThisN ; i++)
		{
			if(temp == m[i])
			{
				return false;
			}
		}
		
		return true;
	}
	
	public static void main(String[] args)
	{
		try
		{
			// Open the input file
			FileInputStream fistream = new FileInputStream("C-large.in");
			
			// Get the object of DataInputStream
			DataInputStream in = new DataInputStream(fistream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine;
			
			//Create output file
			File file = new File("output.out");
			boolean exist = file.createNewFile();
			
			if (!exist)
			{
				System.out.println("File already exists.");
				System.exit(0);
			}
			
			FileWriter fostream = new FileWriter("output.out");
			BufferedWriter out = new BufferedWriter(fostream);
			
			int counterCases = 0;		//Counter purpose
			
			//Read File Line By Line
			int totalNumberOfCases = 0;
			while ((strLine = br.readLine()) != null)
			{
				if(counterCases == 0)
				{
					//Ignore the first Line for Conversion
					totalNumberOfCases = Integer.parseInt(strLine);
					counterCases++;
					continue;
				}
				
				String[] results = strLine.split(" ");
				
				long A = Long.parseLong(results[0]);
				long B = Long.parseLong(results[1]);
				
				int counter = 0;
				
				for(long n = A ; n < B ; n++)
				{			
					String nTemp = "" + n;
					String mTemp;
					
					int totalMForThisN = 0;
					long [] m = new long [nTemp.length() - 1];
					
					for(int i= (nTemp.length() - 1) ; i >= 0 ; i--)
					{
						mTemp = nTemp.substring(i) + nTemp.substring(0,i);
						
						if(mTemp.startsWith("0"))
						{
							continue;
						}
						else
						{
							long temp = Long.parseLong(mTemp);
							
							if(temp > n && temp <= B)
							{
								if(checkForNewM(temp, m, totalMForThisN))
								{
									m[totalMForThisN] = temp;
									totalMForThisN++;
									counter++;
								}
							}
						}
					}
				}
				// Print the content in the output file
				out.write("Case #" + counterCases + ": " + counter);
				
				if(counterCases < totalNumberOfCases)
				{
					out.write("\n");
				}
				counterCases++;
			}
			//Close the input stream
			in.close();

			//Close the output Stream
			out.close();
		}
		
		catch(Exception e)
		{
			//Catch exception if any
			System.err.println("Error: " + e.getMessage() + " : " + e);
		}
	}
}