package jp.funnything.competition.util;

import java.math.BigInteger;

/**
 * Utility for BigInteger
 */
public class BI {
    public static BigInteger ZERO = BigInteger.ZERO;
    public static BigInteger ONE = BigInteger.ONE;

    public static BigInteger add( final BigInteger x , final BigInteger y ) {
        return x.add( y );
    }

    public static BigInteger add( final BigInteger x , final long y ) {
        return add( x , v( y ) );
    }

    public static BigInteger add( final long x , final BigInteger y ) {
        return add( v( x ) , y );
    }

    public static int cmp( final BigInteger x , final BigInteger y ) {
        return x.compareTo( y );
    }

    public static int cmp( final BigInteger x , final long y ) {
        return cmp( x , v( y ) );
    }

    public static int cmp( final long x , final BigInteger y ) {
        return cmp( v( x ) , y );
    }

    public static BigInteger div( final BigInteger x , final BigInteger y ) {
        return x.divide( y );
    }

    public static BigInteger div( final BigInteger x , final long y ) {
        return div( x , v( y ) );
    }

    public static BigInteger div( final long x , final BigInteger y ) {
        return div( v( x ) , y );
    }

    public static BigInteger mod( final BigInteger x , final BigInteger y ) {
        return x.mod( y );
    }

    public static BigInteger mod( final BigInteger x , final long y ) {
        return mod( x , v( y ) );
    }

    public static BigInteger mod( final long x , final BigInteger y ) {
        return mod( v( x ) , y );
    }

    public static BigInteger mul( final BigInteger x , final BigInteger y ) {
        return x.multiply( y );
    }

    public static BigInteger mul( final BigInteger x , final long y ) {
        return mul( x , v( y ) );
    }

    public static BigInteger mul( final long x , final BigInteger y ) {
        return mul( v( x ) , y );
    }

    public static BigInteger sub( final BigInteger x , final BigInteger y ) {
        return x.subtract( y );
    }

    public static BigInteger sub( final BigInteger x , final long y ) {
        return sub( x , v( y ) );
    }

    public static BigInteger sub( final long x , final BigInteger y ) {
        return sub( v( x ) , y );
    }

    public static BigInteger v( final long value ) {
        return BigInteger.valueOf( value );
    }
}

import java.io.File;
import java.io.PrintWriter;
import java.util.*;


public class RecycledNumbers {
	public static void main(String[] args) throws Exception {
		Scanner scanner = new Scanner(new File("C-small-attempt0.in"));
		int num = scanner.nextInt();
		scanner.nextLine();
		PrintWriter writer = new PrintWriter(new File("Answer2.txt"));
		for(int a = 1;a<=num;a++) {
			Map<Integer,Set<Integer>> map = new HashMap<Integer,Set<Integer>>();
			int start = scanner.nextInt();
			int finish = scanner.nextInt();
			int count = 0;
			for(int x = start;x<=finish;x++) {
				map.put(x, new HashSet<Integer>());
				String s = "" + x;
				int length = s.length();
				for(int i=1;i<s.length();i++)
				{
					String f = s.substring(length-i) + s.substring(0,length-i);
					int fin = Integer.valueOf(f);
					if(!f.startsWith("0") && fin<=finish && x<fin) {
						map.get(x).add(fin);
					}
				}
				count+=map.get(x).size();
			}
			
			writer.println("Case #" + a + ": " + count);
			writer.flush();
			
		}
		writer.close();
	}
}
