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.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * Created by IntelliJ IDEA.
 * User: Bunyod Xalilov
 * Date: 4/14/12
 * Time: 11:32 AM
 * To change this template use File | Settings | File Templates.
 */
public class TaskC {
    BufferedReader stdin;
    PrintWriter out;
    Integer n, iii, t;
    Integer[] nm, nn, mm;
    Boolean[] array;
    String str;
    List<Integer> listOfCases;


    public TaskC() {
        stdin = new BufferedReader(new InputStreamReader(System.in));
        out = new PrintWriter(System.out);
    }

    public void solve() throws IOException {
        Integer[] in = readInt(1);
        n = in[0];
        nn = new Integer[n];
        mm = new Integer[n];
        array = new Boolean[1000001];
        listOfCases = new ArrayList<Integer>();
        Arrays.fill(array, true);
        for (int i = 0; i < n; i++) {
            nm = readInt(2);
            nn[i] = nm[0];
            mm[i] = nm[1];
        }

        for (int i = 0; i < n; i++) {
            iii = 0;
            for (int j = nn[i]; j <= mm[i]; j++) {
                str = String.valueOf(j);
                for (int k = 1; k < str.length(); k++) {
                    StringBuffer sb = new StringBuffer();
                    sb.append(str.substring(k, str.length()));
                    sb.append(str.substring(0, k));
                    if (!sb.toString().startsWith("0")) {
                        t = Integer.parseInt(sb.toString());
                        if (array[t] && (j < t && t <= mm[i])) {
                            array[t] = false;
                            iii++;
                        }
                    }
                }
                Arrays.fill(array, true);
            }
            out.println("Case #" + (i + 1) + ": " + iii);
        }

        out.flush();
    }

    public Integer[] readInt(int size) throws IOException {
        Integer[] result = new Integer[size];
        String[] params = stdin.readLine().split(" ");
        for (int i = 0; i < size; i++) {
            result[i] = Integer.parseInt(params[i]);
        }
        return result;
    }

    public static void main(String[] args) throws IOException {
        TaskC obj = new TaskC();
        obj.solve();
        obj.stdin.close();
        obj.out.close();
    }
}
