import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class Main {

//	static int MAX = 10000;
	static int MAX = 2000000;
	static Object[] All = new Object[MAX+1];
	
	static int size( int x ) {
		if(x>999999) return 7;
		if(x>99999)  return 6;
		if(x>9999)   return 5;
		if(x>999)    return 4;
		if(x>99)     return 3;
		if(x>9)      return 2;
		return 1;
	}
	static int[] rotate( int value ) {
		List<Integer> result = new ArrayList<Integer>();
		int[] V = new int[8];
		int s = size(value);
		int x = value;
		
		for(int i=s-1;i>=0;i--) {
			V[i] = x%10;
			x /=10;
		}
		int rot;
		for(int i=1; i<s; i++) {
			if(V[i]!=0){
				rot=0;
				for(int j=0,ii=i;j<s; j++,ii=(ii+1)%s){
					rot=rot*10+V[ii];
				}
				if(rot>value && !result.contains(rot))
					result.add(rot);
			}
		}
		if( result.isEmpty() )
			return null;
		int[] r = new int[result.size()];
		for(int i=0; i<r.length; i++)
			r[i]=result.get(i);
		return r;
	}
	
	static void precalculate() {
		for(int i=1; i<=MAX; i++){
			All[i] = rotate(i);
		}
	}
	static int solve( Scanner in ) {
		int A, B, sol=0;
		
		A = in.nextInt();
		B = in.nextInt();

		for( int i=A; i<=B; i++) {
//			List<Integer> result = rotate(i);
			if( All[i]!=null ) {
				for(int value: (int[])All[i] ) {
					if( value <= B )
						sol++;
				}
			}
		}

		return sol;
	}
	
	public static void main ( String args[] ) {
		int T; 
		Scanner in = new Scanner(System.in);
		T = in.nextInt();
		int cnt=0;
		int sol;
		precalculate();
		for( cnt=1; cnt<=T; cnt++ ) {
			sol = solve( in );
			System.out.printf("Case #%d: %d\n", cnt, sol);
		}

	}
}

package codejam;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.HashMap;

public class RecyledNumbers {

	public static void main(String[] args) {
		String filename = "C:\\Users\\maheswaran\\Desktop\\C-large.in";
		String fileContents = readFile(filename);
		
		String[] lines = fileContents.split("\n");
		
		int noOfLines = Integer.parseInt(lines[0]);
		
		for(int i = 1; i <= noOfLines; i++)
		{
			int noOfRecyclables = 0;
			HashMap<String, String> recyclables = new HashMap<String, String>();
			
			String[] numbers = lines[i].split(" ",2);
			
			int start = Integer.parseInt(numbers[0]);
			int end = Integer.parseInt(numbers[1]);
			
			for( int j = start; j<=end; j++)
			{
				int digits = (start+"").length();
				
				for(int k = 1; k< digits;k++)
				{
					String numString = j+"";
					String shiftString = shift(numString,k);
					
					if(numString.equals(shiftString))
					{
						continue;
					}
					
					int shiftNum  = Integer.parseInt(shiftString); 
					if(shiftNum <= end && shiftNum>=start)
					{
						
						if(shiftNum > j)
						{
						
							recyclables.put(numString+","+shiftNum,"12");
							//noOfRecyclables++;
							continue;
						}
					}
					
					
				}
				
				
				
			}
			
			noOfRecyclables = recyclables.size();
			
			System.out.println("Case #"+i+": "+noOfRecyclables);
		}
		
	}
	
	private static String shift(String num, int numToShift)
	{
		String shiftedNum;
		int positionToSplit = num.length() - numToShift;
		shiftedNum = num.substring(positionToSplit) + num.substring(0,positionToSplit);
		
		return shiftedNum;		
	}

	private static String readFile(String filename)
	{
		StringBuffer file = new StringBuffer();
		try{
			  // Open the file that is the first 
			  // command line parameter
			  FileInputStream fstream = new FileInputStream(filename);
			  // Get the object of DataInputStream
			  DataInputStream in = new DataInputStream(fstream);
			  BufferedReader br = new BufferedReader(new InputStreamReader(in));
			  String strLine;
			  
			  //Read File Line By Line
			  while ((strLine = br.readLine()) != null)   {
			  // Print the content on the console
			 file.append(strLine).append("\n");
			  }
			  //Close the input stream
			  in.close();
			    }catch (Exception e){//Catch exception if any
			  System.err.println("Error: " + e.getMessage());
			  }
		return file.toString();
		
	}


}
