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.*;

public class Recycled{
public static void main(String args[])
{
try{
File myFile = new File("C-small-attempt0.in");
FileReader fileReader = new FileReader(myFile);

BufferedReader reader = new BufferedReader(fileReader);
FileWriter fileWriter = new FileWriter("C-small-attempt0.out");
BufferedWriter writer = new BufferedWriter(fileWriter);
String line = null;
line = reader.readLine();
int numLines = Integer.parseInt(line);
//writer.write("hello");
for(int i=0;i<numLines;i++)
{
int recyclecount = 0;
line = reader.readLine();
String AB[] = line.split(" ");

int a = Integer.parseInt(AB[0]);
int b = Integer.parseInt(AB[1]);
int length = AB[0].length();

//the initial value of n

for(int n=a;n<b;n++)
{
System.out.println("N: " + n);
//writer.write("N " + n+"\r\n");
//recycle the value by taking the last digit forward and check with the range,and then the last two digits,etc
for(int j=1;j<length;j++){
if(length!=1){
int tail = n%(int)Math.pow(10,j);
int head = n/(int)Math.pow(10,j);
//concatenate the head and tail and form a new number
int newNumber = Integer.parseInt(tail +""+head);

if((newNumber+"").length() == length){
System.out.println(newNumber);
//writer.write("new " + newNumber+"\r\n");
//compare with the range n<m<=B

if(newNumber<=b && newNumber>n)
{
recyclecount++;
System.out.println("RC " + recyclecount);
//writer.write("RC " + recyclecount+"\r\n");

}

}
}
}
}
String out = "Case #" + (i+1) +": "+recyclecount+"\r\n";
writer.write(out);
System.out.println(out);


}
reader.close();
writer.close();

}catch(Exception ex){
ex.printStackTrace();
}
}
}