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.util.*;
import java.io.*;

public class recycle {
	public static String cycle(String n){
		String[] t = new String[n.length()];
		for(int i = 0; i < n.length(); i++){
			t[i] = n.substring(i, i+1);
		}
		
		String q = t[n.length() - 1];
		for(int i = n.length() - 2; i >= 0; i--){
			t[i+1] = t[i];
		}
		t[0] = q;
		
		String res = "";
		for(int i = 0; i < n.length(); i++){
			res += t[i];
		}
		return res;
	}
	public static boolean cycletest(String n, String m){
		boolean con = false;
		for(int i = 0; i < m.length(); i++){
			m = cycle(m);
			if(n.equals(m)){
				con = true;
			} 
		}
		return con;
	}
	public static void main(String[] args) throws IOException{
		Scanner reader = new Scanner(new File("recycle.in"));
		PrintWriter out = new PrintWriter(new File("recycle.out"));
		
		int n = reader.nextInt();
		int[][] set = new int[n][2];
		
		for(int i = 0; i < n; i++){
			set[i][0] = reader.nextInt();
			set[i][1] = reader.nextInt();
		}
		
		int counter = 0;
		int[] res = new int[n];
		for(int i = 0; i < n; i++){
			for(int j = set[i][0]; j <= set[i][1]; j++){
				for(int q = j+1; q <= set[i][1]; q++){
					if(cycletest(Integer.toString(q), Integer.toString(j))){
						counter++;
					}
				}
			}
			res[i] = counter;
			counter = 0;
		}
		
		for(int i = 0; i < n; i++){
			out.println("Case #" + (i+1) + ": " + res[i]);
		}
		
		out.close();
		System.exit(0);
	}
}
