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 googlejam3;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;

public class Main3 
{
	static HashMap<String,String> pairsMap = new HashMap<String,String>();
	
	protected static String resolveTestCase(String line)
	{
		String [] tokens = line.split(" ");
		
		int A = Integer.parseInt(tokens[0]);
		int B = Integer.parseInt(tokens[1]);
		
		System.out.println("A = " + A + " B = " + B );
		
		int pairs = 0;
		
		pairsMap.clear();
		
		for ( int n = A; n <= B; n++ )
		{
			String test = Integer.toString(n);
			
			for ( int j = 1; j < test.length(); j++ )
			{
				String test2 = test.substring(j, test.length()) + test.substring(0, j);
				
				int m = Integer.parseInt(test2);
				
				if ( test2.charAt(0) != '0' && n < m && m <= B && pairsMap.get(test+test2) == null)
				{
					pairs++;
					
					pairsMap.put(test+test2, "");
				}
			}
		}
		
		return "" + pairs;
	}
	
	public static void main (String [] args) throws IOException
	{
		String inputFile = args[0];
		
		File f = new File(inputFile);
		FileReader fr = new FileReader(f);
		BufferedReader br = new BufferedReader(fr);
		
		File f2 = new File(inputFile + ".out");
		FileWriter fw = new FileWriter(f2);

		String line = br.readLine();
		
		int count = Integer.parseInt(line);

		// resolve test cases
		int testcase = 1;
		
		for(int tests = 0; tests < count; tests++)
		{
			line = br.readLine();
			
			System.out.println(line);

			String output = "Case #"+testcase+": ";
			
			output += resolveTestCase(line);
			
			System.out.println(output+"\n");
			fw.write(output+"\r\n");
			
			testcase++;
		}
		
		fw.close();
		
	}
}
