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 );
    }
}

package cjam.c;

import java.awt.Checkbox;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;

public class Program {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
		 java.io.BufferedReader stdin = new java.io.BufferedReader(new java.io.InputStreamReader(System.in));
	      
	       try {
			int n = Integer.parseInt(stdin.readLine());
			 ArrayList<String> l = new ArrayList<String>();
			for (int i = 0; i < n; ++i){
				String[] spt = stdin.readLine().split(" ");
				int a = Integer.parseInt(spt[0]);
				int b = Integer.parseInt(spt[1]);
				
				int res = 0;
				for (int j = a; j <= b; ++j){
					for (int k = j+1; k <= b; ++k){
						if (check(j,k)){ res++;
//						check(j,k);
//						if (j == 178) {
//							int asd = 123;
//							check(j,k);
//							asd++;
//						}
//						System.out.println(j+" "+k);
						}
					}
				}
				l.add("Case #"+(i+1)+": "+res);
				
			}
			for (String s : l) {
		    	   System.out.println(s);
		       }
		} catch (NumberFormatException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

	static boolean check(int a, int b){
		
		if (b <= a) return false;
		int x = 10;
		int n = 1;
		while (a/x > 0){
			n++;
			x *= 10;
		}

		//System.out.println(n);
		for (int i = 1; i < n; ++i){
			int c = a % pow(10,i);
			int f = pow(10,(n-i))*c;
			int g = a / pow(10,i);
			if ( f+g  == b) return true;
		}
		
		return false;
	}
	static int pow (int x, int n){
		int y = x;
		for (int i =0; i<n-1; ++i) y*=x;
		return y;
	}
}
