import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}

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;
    }
}
