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

import java.util.HashSet;

/**
 *
 * @author vandit
 */
public class RecycleNumbers {

    private HashSet<String> numbers = new HashSet<String>();
    private HashSet<String> initialTempNumbers = new HashSet<String>();
    private HashSet<String> finalTempNumbers = new HashSet<String>();

    HashSet<Pair> numberPairs = new HashSet<Pair>();


    private void findRecycledNumbers(int start, int end, int places) {


        for (int i = start; i <= end; i++) {
            String initialNumber = Integer.toString(i);
            //if (!(numbers.contains(initialNumber) || finalTempNumbers.contains(initialNumber))) {

                StringBuffer tempNumber = new StringBuffer(initialNumber);
                int len = tempNumber.length();
                int startIndexToMove = len - places;
                String tempString = tempNumber.substring(startIndexToMove);
                if ((places == 1 && tempString.equals("0")) || tempString.charAt(0) == '0') {
                    continue;
                }
                tempNumber.delete(startIndexToMove, len);
                String finalTempNumber = tempString + tempNumber.toString();

                if (! (finalTempNumber.equals(initialNumber) || Integer.parseInt(finalTempNumber) > end || Integer.parseInt(finalTempNumber) < Integer.parseInt(initialNumber))) {
                    numbers.add(initialNumber);
                    finalTempNumbers.add(finalTempNumber);
                    Pair pair = new Pair(finalTempNumber,initialNumber);
                    numberPairs.add(pair);
                }
            }

        

    }

    public HashSet<Pair> findAllRecycledNumbers(int start, int end) {
        int length = Integer.toString(start).length();
        for (int i = 1; i < length; i++) {
            findRecycledNumbers(start, end, i);
        }
        return numberPairs;
    }
}

package jp.funnything.prototype;

import java.io.File;
import java.io.IOException;
import java.util.Set;

import jp.funnything.competition.util.CompetitionIO;
import jp.funnything.competition.util.Packer;

import org.apache.commons.io.FileUtils;

import com.google.common.collect.Sets;

public class Runner {
    public static void main( final String[] args ) throws Exception {
        new Runner().run();
    }

    void pack() {
        try {
            final File dist = new File( "dist" );

            if ( dist.exists() ) {
                FileUtils.deleteQuietly( dist );
            }

            final File workspace = new File( dist , "workspace" );

            FileUtils.copyDirectory( new File( "src/main/java" ) , workspace );
            FileUtils.copyDirectory( new File( "../../../../CompetitionUtil/Lib/src/main/java" ) , workspace );

            Packer.pack( workspace , new File( dist , "sources.zip" ) );
        } catch ( final IOException e ) {
            throw new RuntimeException( e );
        }
    }

    void run() throws Exception {
        final CompetitionIO io = new CompetitionIO();

        final int t = io.readInt();

        for ( int index = 0 ; index < t ; index++ ) {
            final int[] values = io.readInts();
            final int a = values[ 0 ];
            final int b = values[ 1 ];

            io.write( index + 1 , solve( a , b ) );
        }

        io.close();

        pack();
    }

    int solve( final int a , final int b ) {
        int count = 0;

        final int nDigit = ( int ) Math.floor( Math.log10( a ) ) + 1;
        final int next = ( int ) Math.pow( 10 , nDigit - 1 );
        final Set< Integer > already = Sets.newTreeSet();

        for ( int n = a ; n + 1 <= b ; n++ ) {
            if ( already.contains( n ) ) {
                continue;
            }

            int inRange = 1;
            already.add( n );

            for ( int base = 10 , m = next ; base < n ; base *= 10 , m /= 10 ) {
                final int v = n / base + n % base * m;

                if ( already.contains( v ) ) {
                    continue;
                }

                if ( v >= a && v <= b ) {
                    inRange++;
                    already.add( v );
                }
            }

            count += inRange * ( inRange - 1 ) / 2;
        }

        return count;
    }
}
