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 );
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package codejam2012;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Scanner;
import java.util.StringTokenizer;
import java.util.TreeSet;

/**
 *
 * @author Rumal
 */
public class QB {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException {
        Scanner s = new Scanner(System.in);
//        int R = 100;
//        int[] cache = new int[R + 1];
//        for (int i = 1; i <= R; i++) {
//            if (i < 10) {
//                cache[i] = 0;
//                continue;
//            }
//            cache[i] = cache[i-1];
//            String h = (i + "");
//            int N = h.length();
//            System.out.println(i);
//            for (int j = 1; j < N; j++) {
//                int y = shift(i, j, N);
//                System.out.print(y+", ");
//                if (y <= R && i < y) {
//                    cache[i]++;
//                }
//            }
//            System.out.println(cache[i]);
//            
//        }
//        System.out.println(Arrays.toString(cache));
//        System.out.println(cache[R]);
//        System.out.println(cache[40]);
//        System.exit(0);
//
//
//
//
//








        int T = s.nextInt();
        for (int t = 1; t <= T; t++) {
            int A = s.nextInt();
            int B = s.nextInt();
            long count = 0;
            p:
            for (int i = A; i <= B; i++) {
                if (i < 10) {
                    continue;
                }
                String h = (i + "");
                int N = h.length();
//                for (int j = 1; j < N; j++) {
//                    if (h.charAt(j) < h.charAt(j - 1)) {
//                        continue p;
//                    }
//                }


                int c = 0;
                //System.out.println(i);
                TreeSet<Integer> st = new TreeSet<Integer>();
                for (int j = 1; j < N; j++) {
                    int y = shift(i, j, N);
                    st.add(y);
                    //  System.out.print(y+",");
                }
                for (int y : st) {
                    if (y <= B && i < y) {
                        count++;
                    }
                }

            }
            //System.out.println(chk);
            System.out.println("Case #" + t + ": " + count);
        }
    }

    private static int shift(int i, int j, int n) {
        String s = i + "";
        int N = s.length();
        if (n != N) {
            return -1;
        }
        int y = Integer.parseInt(s.substring(N - j) + s.substring(0, N - j));
        if ((y + "").length() != N) {
            return -1;
        }
        return y;
    }
}
