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.FileReader;
import java.util.StringTokenizer;


public class REcycledNumbers {
	
	public static void main(String args[]) throws Exception {
		String line = "";
		BufferedReader br =	new BufferedReader(new FileReader("/Users/ravipalacherla/Documents/workspace/CodeJam/src/input.txt"));
		int T = Integer.parseInt(br.readLine());
		int j=0;
		while((line = br.readLine()) != null) {
			StringTokenizer st = new StringTokenizer(line," ");
			String strA = st.nextToken();
			String strB = st.nextToken();
			int intA = Integer.parseInt(strA);
			int intB = Integer.parseInt(strB);
			int count = 0;
			
			int intn = intA;
			while(intn < intB) {
				String strn = Integer.toString(intn);
				for(int i = strn.length()-1; i>0;i--) {
					String	strm = strn.substring(i)+strn.substring(0,i);
					if(strm.charAt(0) == '0') continue;
					int intm = Integer.parseInt(strm);
					if( ((""+intn).length() != (""+intm).length()) || ((""+intn).length() != (""+intA).length())) continue;
					if(intn == intm) continue;
					if ( ( intA <= intn) && (intn < intm) && (intm <= intB) ) {
					//	System.out.println("intN is " + intn + " intM is "+ intm);
						count ++;
					}
				}
				intn++;
			}
			j++;
			System.out.println("Case #"+ j +": "+count);
		}
	}
}
