package jp.funnything.competition.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;

import org.apache.commons.io.IOUtils;

public class QuestionReader {
    private final BufferedReader _reader;

    public QuestionReader( final File input ) {
        try {
            _reader = new BufferedReader( new FileReader( input ) );
        } catch ( final FileNotFoundException e ) {
            throw new RuntimeException( e );
        }
    }

    public void close() {
        IOUtils.closeQuietly( _reader );
    }

    public String read() {
        try {
            return _reader.readLine();
        } catch ( final IOException e ) {
            throw new RuntimeException( e );
        }
    }

    public BigDecimal[] readBigDecimals() {
        return readBigDecimals( " " );
    }

    public BigDecimal[] readBigDecimals( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigDecimal[] values = new BigDecimal[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigDecimal( tokens[ index ] );
        }

        return values;
    }

    public BigInteger[] readBigInts() {
        return readBigInts( " " );
    }

    public BigInteger[] readBigInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigInteger[] values = new BigInteger[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigInteger( tokens[ index ] );
        }

        return values;
    }

    public int readInt() {
        final int[] values = readInts();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public int[] readInts() {
        return readInts( " " );
    }

    public int[] readInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final int[] values = new int[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Integer.parseInt( tokens[ index ] );
        }

        return values;
    }

    public long readLong() {
        final long[] values = readLongs();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public long[] readLongs() {
        return readLongs( " " );
    }

    public long[] readLongs( final String separator ) {
        final String[] tokens = readTokens( separator );

        final long[] values = new long[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Long.parseLong( tokens[ index ] );
        }

        return values;
    }

    public String[] readTokens() {
        return readTokens( " " );
    }

    public String[] readTokens( final String separator ) {
        return read().split( separator );
    }
}

	

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.io.ObjectInputStream.GetField;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
import java.math.BigInteger;

public class C {

    private static char[] alph;
    private static String  fileIN = "./A.in"; //archivo de entrada (en el dir local del programita)
    private static String  fileOUT = "./out.txt"; //salida

    public static void main(String[] args) throws FileNotFoundException {
        Scanner in = new Scanner(new File(fileIN));
        PrintWriter out = new PrintWriter(new File(fileOUT));
        int T = in.nextInt();
        for (int i = 0; i < T; i++) {
            String s = "Case #" + (i + 1) + ": " + new C().solve(in);
            out.println(s);
            System.out.println(s);
         }
        
        
        out.close();
    	//getCombinaciones(1234);
    }
/**
* Retorna la solucion a un caso
**/
    private String solve(Scanner in) {
    	int min, max = 0;
    	min= in.nextInt();
    	max= in.nextInt();
    	int tot = 0;
    	int tot_[] = new int[6];
    	int prov = 0;
    
    	for(int i = min; i< max; i++){
    		for(Integer j: getCombinaciones(i)){
    			//System.out.println(j);
    			if(j>i)
    			if(isValid(j, min, max)) prov++;
    		}
    		tot_[prov]++;
    		tot+= prov;
    		prov =0;
    	}
    /*	for(int i = 0; i < tot_.length; i++){
    		tot-= 
    	}*/
    	
    	return String.valueOf(tot);
    }
    
	private boolean isValid(Integer j, int min, int max) {
		
		return j<=max && j>=min;
	}
	private static List<Integer> getCombinaciones(int i) {
		ArrayList<Integer> l = new ArrayList<Integer>();
		
		String is = String.valueOf(i); 
		String aux = String.valueOf(i);
		if(symetric(is)) return l;
		do{
			aux = aux.charAt(aux.length()-1)+ aux.substring(0, aux.length()-1);
		
			if(aux.charAt(0)!='0')
			l.add(Integer.valueOf(aux));
		}
		while(!is.equals(aux));
		l.remove(l.size()-1);
		
		return l;
	}
	private static boolean symetric(String is) {
		if(is.length() % 2 ==1) return false;
		else return is.substring(0, is.length()/2).equals(is.substring(is.length()/2 + 1, is.length()));
		
	}
	    
    
   
  }

