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.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;

public class RecycledNumbers {
	HashSet<Pair> rnumsPairs = new 	HashSet<Pair>();
	PrintWriter out = null;
	BufferedReader in = null;

	public RecycledNumbers() {
		try {
			out = new PrintWriter(new FileWriter("B-small-practice.out"));
			in = new BufferedReader(new FileReader("C-small-attempt0.in"));
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public void getRecycleNumbers(int num,int A,int B) {
		String aux = num + "";
		int an=0;
		int len = aux.length();
		String rnum="";
		int rn=0;
		for (int i = 1; i < len; i++) {
			rnum=aux.substring(i) + aux.substring(0, i);
			rn=Integer.parseInt(rnum);
			an=Integer.parseInt(aux);
			if((rn>A)&&(rn<=B)&&(an<rn)){
				Pair p=new Pair(an,rn);
				rnumsPairs.add(p);
			}
		}
	}

	public void getCount(int A, int B) {
		for (int i = A; i <= B; i++) {
			getRecycleNumbers(i,A,B);
		}
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		RecycledNumbers rn = new RecycledNumbers();
		try {
			int nt = Integer.parseInt(rn.in.readLine());
			String num[] = new String[2];
			for (int i = 1; i <= nt; i++) {
				num = rn.in.readLine().split(" ");
				 int A = Integer.parseInt(num[0]);
				  int B = Integer.parseInt(num[1]);
				rn.getCount(A, B);
				rn.out.println("Case #" + i + ": " + rn.rnumsPairs.size());
				rn.rnumsPairs.clear();
			}
		} catch (NumberFormatException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		rn.out.close();
	}

}

class Pair{
	int a=0;
	int b=0;
	public Pair(Integer a,Integer b){
		this.a=a;
		this.b=b;
	}
	public boolean equals(Object o){
		
		if(o==null){
			return false;
		}
		if(!(o instanceof Pair))return false;
		Pair p=(Pair)o;
		if(((p.a==a)&&(p.b==b))||((p.a==b)&&(p.b==a))){
			return true;
		}
		return false;
	}
	public int hashCode(){
		int hcode=a+"".hashCode()+b+"".hashCode();
		return  hcode;
	}
}
