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.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.util.Scanner;
import java.util.TreeMap;

/**
 * Created with IntelliJ IDEA.
 * User: akim
 * Date: 4/14/12
 * Time: 7:45 PM
 * To change this template use File | Settings | File Templates.
 */
public class C {

    String makeHash(int a) {
        String t = Integer.toString(a);
        String ans = t;
        for (int i = 0; i < t.length(); ++i) {
            t = t.substring(1)+t.charAt(0);
            if (ans.compareTo(t) > 0) ans = t;
        }
//        System.out.println(a + " - " + ans);
        return ans;
    }

    void solve() throws FileNotFoundException {
        PrintWriter out = new PrintWriter(new FileOutputStream("output.txt"));
        Scanner in = new Scanner(new FileInputStream("input.txt"));
        int t = Integer.parseInt(in.nextLine());
        System.err.println(t);
        TreeMap<String, Long> ans = new TreeMap<String, Long>();
        for (int i = 0; i < t; ++i) {
            ans.clear();
            int A = in.nextInt();
            int B = in.nextInt();
            for (int qqq = A; qqq <= B; ++qqq) {
                String hash = makeHash(qqq);
                if (!ans.containsKey(hash)) ans.put(hash, 0L);
                long tmp = ans.get(hash);
                ans.put(hash, tmp + 1);
            }
            long rrr = 0;
            /*for (int a = A; a <= B; ++a)
                for (int b = a + 1; b <= B; ++b)
                    if (makeHash(a).equals(makeHash(b))) --rrr;*/
            for (String h : ans.keySet()) {
                long tmp = ans.get(h);
                rrr += tmp * (tmp - 1) / 2;
            }
            out.println("Case #" + (i + 1) + ": " + rrr);
            System.err.println((i + 1) + " " + rrr);
        }
        out.flush();
        out.close();
    }


    public static void main(String[] args) throws FileNotFoundException {
        new C().solve();
    }
}
