import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;

public class ReadFile {
	public static void main(String[] args) throws Exception {
		String srcFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt1.in.txt";
		String destFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt0.out";
		File file = new File(srcFile);
		List<String> readData = new ArrayList<String>();
		FileReader fileInputStream = new FileReader(file);
		BufferedReader bufferedReader = new BufferedReader(fileInputStream);
		StringBuilder stringBuilder = new StringBuilder();
		String line = null;
		while ((line = bufferedReader.readLine()) != null) {
			readData.add(line);
		}
		stringBuilder.append(generateOutput(readData));
		File writeFile = new File(destFile);
		if (!writeFile.exists()) {
			writeFile.createNewFile();
		}
		FileWriter fileWriter = new FileWriter(writeFile);
		BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
		bufferedWriter.write(stringBuilder.toString());
		bufferedWriter.close();
		System.out.println("output" + stringBuilder);
	}

	/**
	 * @param number
	 * @return
	 */
	private static String generateOutput(List<String> number) {
		StringBuilder stringBuilder = new StringBuilder();
		for (int i = 0; i < number.size(); i++) {
			if (i == 0) {
				continue;
			} else {
				String tempString = number.get(i);
				String[] temArr = tempString.split(" ");
				stringBuilder.append("Case #" + i + ": ");
				stringBuilder.append(getRecNumbers(temArr[0], temArr[1]));
				stringBuilder.append("\n");
			}
		}
		if (stringBuilder.length() > 0) {
			stringBuilder.deleteCharAt(stringBuilder.length() - 1);
		}
		return stringBuilder.toString();
	}

	// /* This method accepts method for google code jam */
	// private static String method(String value) {
	// int intValue = Integer.valueOf(value);
	// double givenExpr = 3 + Math.sqrt(5);
	// double num = Math.pow(givenExpr, intValue);
	// String valArr[] = (num + "").split("\\.");
	// int finalVal = Integer.valueOf(valArr[0]) % 1000;
	//
	// return String.format("%1$03d", finalVal);
	//
	// }
	//
	// /* This method accepts method for google code jam */
	// private static String method2(String value) {
	// StringTokenizer st = new StringTokenizer(value, " ");
	// String test[] = value.split(" ");
	// StringBuffer str = new StringBuffer();
	//
	// for (int i = 0; i < test.length; i++) {
	// // test[i]=test[test.length-i-1];
	// str.append(test[test.length - i - 1]);
	// str.append(" ");
	// }
	// str.deleteCharAt(str.length() - 1);
	// String strReversedLine = "";
	//
	// while (st.hasMoreTokens()) {
	// strReversedLine = st.nextToken() + " " + strReversedLine;
	// }
	//
	// return str.toString();
	// }

	private static int getRecNumbers(String no1, String no2) {

		int a = Integer.valueOf(no1);
		int b = Integer.valueOf(no2);
		Set<String> dupC = new HashSet<String>();
		for (int i = a; i <= b; i++) {
			int n = i;
			List<String> value = findPerm(n);
			for (String val : value) {
				if (Integer.valueOf(val) <= b && Integer.valueOf(val) >= a
						&& n < Integer.valueOf(val)) {
					dupC.add(n + "-" + val);
				}
			}
		}
		return dupC.size();
	}

	private static List<String> findPerm(int num) {
		String numString = String.valueOf(num);
		List<String> value = new ArrayList<String>();
		for (int i = 0; i < numString.length(); i++) {
			String temp = charIns(numString, i);
			if (!temp.equalsIgnoreCase(numString)) {
				value.add(charIns(numString, i));
			}
		}
		return value;

	}

	public static String charIns(String str, int j) {
		String begin = str.substring(0, j);
		String end = str.substring(j);
		return end + begin;
	}
}
import java.util.*;
import java.io.*;


public class RecycledNums 
{
    
    static LinkedList<String[]> output = new LinkedList<String[]>();
    
    
    static int numberOfLines;

    //Main Method
    public static void main (String[] args)
	{
                 
		//Read in the file
        parseFile( output );
        
        
        int[] ans = new int[ numberOfLines ];
        
        //Calculate recycled numbers
        ListIterator itr = output.listIterator();
            
        int count = 0;
       
        
        //Iterate through all cases, input to calcNums     
        while( itr.hasNext() )
        {
           int result = calcNums( (String[])itr.next() );
           
           //Store result of that case in ans array
           ans[count] = result; 
           count++;
        }
                
        //printFile(output);
        
        //Write out file
        writeFile( ans );
 
    }//End of Main
      
    static int calcNums(String[] input )
    {
        
        //Let A = first element, let B = the second element 
        String a = input[0];
        String b = input[1];
        String n = null;
        String m = null;
        
        //If length of A and B == 1
        if (a.length() == 1 && b.length() == 1)
        {
          return 0;
        }
        
        //initialize the array ranges with numbers starting from A ending at B
        int count = 0;
        HashSet<String> set = new HashSet<String>();
        
        ArrayList<String> range = new ArrayList<String>(); 
        
        int int_a = Integer.parseInt(a);
        int int_b = Integer.parseInt(b); 
        int temp = int_a;
        
        while( temp <= int_b )
        {    
            range.add( Integer.toString( temp ) );
            temp++;     
        }
        
        //loop from i = 0 till i < ranges.size()
        for (int i = 0; i < range.size(); i++)
        {
          n = range.get(i);
          m = range.get(i);
          int int_n = Integer.parseInt(n);
          

            //let length be the length of string in ranges[i] 
          int length = range.get(i).length();
          
          //loop from j = 0 till j < ranges[i].length
          for (int j = 0; j < length; j++)
          {
            //get the last char from current_m 
            //get the string from 0 to 2nd last char
            //concatenate both strings together
            
            m = m.substring(length -1) + m.substring(0, length - 1);
            
            
            int int_m = Integer.parseInt(m);

            // A â¤ n < m â¤ B
            if (int_m <= int_b && int_m > int_n && int_m >= int_a)
            {
                //If a valid pair, add pair to HashSet, no duplicates.
                String key = n + m;
                set.add(key);
            }
          }
        }
    
        return set.size(); 
    }
    
  
    static void parseFile(LinkedList<String[]> output)
	{
        
  		try
		{
				BufferedReader in = new BufferedReader(new FileReader( "input.in" ));

				numberOfLines = Integer.parseInt( in.readLine() );
				
				int count = 0;
				String line;
				
				
				    while (count < numberOfLines )	//file reading line by line
				    {
				        line = in.readLine();
				        
				        //Split each line into array of 2 numbers
					    String[] lines = line.split(" ");
						
						//int[] temp = new int[lines.length]; 
						//temp[0] = Integer.parseInt( lines[0] );
						//temp[1] = Integer.parseInt( lines[1] );
						
						//output.add(temp);
						
						output.add(lines);
						
						count++;
		        	    
				    }
				    
	        	    in.close();

	            }catch( IOException ioException ) {}
    
    }//End of parseFile()
    
    static void writeFile( int[] ans)
    {
        //Write out lines to a file
        try 
        {
            BufferedWriter bw = new BufferedWriter(new FileWriter(new File("output.in"), false));
            
            
            for(int i = 0 ; i < ans.length; i++)
            {
                int num = i + 1;
                bw.write("Case #" + num + ": ");
                bw.write( Integer.toString(ans[i]));
                bw.newLine();
            }
            
            bw.close();
        } 
        catch (Exception e) 
        {}
   
    }//End of writeFile() 
  
} //End of RecyclesNums Class   
