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 );
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package codejam2012;

/**
 *
 * @author ESIEN
 */
public class C {
        static int numOfDigits;
        final static int max = 1001;
        static int div;
        static boolean[] found = new boolean[max];
        static int[]p = new int[max];
    public static void main(String[] args)throws java.io.IOException{
        java.util.Scanner fromFile = new java.util.Scanner(new java.io.File("input.txt"));
        java.io.PrintStream intoFile = new java.io.PrintStream("output.txt");
        int testCase = fromFile.nextInt();
        for (int test = 1; test <= testCase; test++){
        int a = fromFile.nextInt();
        int b = fromFile.nextInt();
        numOfDigits = 0;
        int t = a;
        while((t/=10)!=0)
            numOfDigits++;
        div = (int)Math.pow(10,numOfDigits);
        int ind=0;
        int totalCount = 0;
        for (int i = a; i <= b; i++){
            if (found[i])
                continue;
            found[p[ind++]=i]=true;
            int c = 0;
            for (int j = 0,k=i%10*div+i/10; j < numOfDigits && k!=i; k=k%10*div+k/10, j++)
                if (k<=b&&k>=a){
                    c++;
                    found[p[ind++]=k]=true;
                }
            totalCount+=(c&1)==0?(c>>1)*(c+1):((c+1>>1)*c);
        }
        for(int i = 0; i < ind; i++)
            found[p[i]]=false;
        intoFile.printf("Case #%d: %d%n",test,totalCount);
        }
        intoFile.close();
        fromFile.close();
    }
}
