import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

class RecycledNumbers{
	
	
	
	int getcount(int small,int large){
		int count = 0;
		for(int currnum = small; currnum < large; currnum++){
			int permut = currnum;
			int no_of_digits = 0;
			while(permut > 0){
				permut = permut/10;
				no_of_digits++;
			}
			int lastDigit = currnum % 10;
			permut = currnum / 10;
			permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
			while(permut != currnum){
				
				if(permut >= currnum && permut <= large){
					
					count++;
				}
				lastDigit = permut % 10;
				permut = permut / 10;
				permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
				
			}
			
		}
		
		return count;
	}
	
	public static void main(String args[]){
		RecycledNumbers d = new RecycledNumbers();
		
		int no_of_cases = 0;
		String input = "";
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		try{
			no_of_cases = Integer.parseInt(br.readLine());
		}
		catch(Exception e){
			System.out.println("First line is not a number");
		}
		
		for(int i=1; i <= no_of_cases;i++){
			try{
				input = br.readLine();
			}
			catch(Exception e){
				System.out.println("Number of test cases different from the number mentioned in first line");
			}
			
			System.out.print("Case #" +i+": ");
			
			StringTokenizer t =  new StringTokenizer(input);
			int small=0,large=0;
			if(t.hasMoreTokens()){
				small = Integer.parseInt(t.nextToken());
			}
			if(t.hasMoreTokens()){
				large = Integer.parseInt(t.nextToken());
			}
			System.out.println(d.getcount(small,large));
			
		}
		
		
		

	}
	
	
}
package tr0llhoehle.cakemix.utility.googleCodeJam;

import java.text.ParseException;

/**
 * This class is a base class for all concrete problems. It is used to define
 * some methods necessary for the IOManager to work. It is crucial that the
 * addValue-Method gets extended and called (super.addValue(o)) by the extending
 * class.
 * 
 * @author Cakemix
 * @see IOManager
 * @see Solver
 */
public abstract class Problem {

    protected SupportedTypes[] types;
    protected int cntr = 0;
    protected boolean isInitialised = false;

    /**
     * Returns an array of SupportedTypes which define exactly what data is
     * stored in this problem.
     * 
     * The attribute "types" needs to be initialized in the constructor of the
     * extending class.
     * 
     * @return An array of SupportedTypes which define exactly what data is
     *         stored in this problem.
     * @see SupportedTypes
     */
    public SupportedTypes[] getTypes() {
	return types;
    }

    public void addValue(Object o) throws ParseException {
	if (!isInitialised) {
	    cntr++;
	    isInitialised = (cntr == types.length);
	} else {
	    throw new ParseException("Tried to add another value to this Problem even though all values are set.", cntr);
	}
    }
}
