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.*;

class RecycledNumbers
{
  public static void main(String[] args)
  {
    try {
    //parse the input
    FileInputStream fstream = new FileInputStream(args[0]);
    DataInputStream dstream = new DataInputStream(fstream);
    BufferedReader br = new BufferedReader(new InputStreamReader(dstream));
    String line = "";

    int numCases = Integer.parseInt(br.readLine());
//System.out.println("num cases: " + numCases);

    for(int lineIdx = 0; lineIdx < numCases; lineIdx++)
    {
      line = br.readLine();
      String[] words = line.split(" ");
      int n = Integer.parseInt(words[0]);
      int m = Integer.parseInt(words[1]);
//System.out.println(n + " " + m);
      int numRecycledNumbers = 0;
      for(int i = n; i <= m; i++)
      {
        for(int j = i+1; j <= m; j++)
          if(countRecycledNumbers(i, j))
            numRecycledNumbers++;
      }
//System.out.println(numRecycledNumbers);
      // write output
      BufferedWriter out = new BufferedWriter(new FileWriter("outfilename", true)); 
      out.write("Case #" + (lineIdx+1) + ": " + numRecycledNumbers + "\n");
      out.close(); 
    }
  }
  catch(FileNotFoundException ex)
  {
    System.out.println(ex);
  }
  catch(IOException ex)
  {
    System.out.println(ex);
  }
  }

  static boolean countRecycledNumbers(int n, int m)
  {
    String nStr = "" + n;
    String mStr = "" + m;
//System.out.println(nStr + " " + mStr);
    if(nStr.length() == mStr.length())
    {
//System.out.println("length condition hit");
      if( (nStr+nStr).indexOf(mStr) >= 0 )
      {
//        System.out.println("index condition hit");
        return true;
//System.out.println(numRecycledNumbers);
      }
    }
    return false;
  }
}


