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.util.*;
import java.util.regex.*;
import java.text.*;
import java.math.*;
import java.io.*;

public class RecycledNumbers {

	private final static String FILE_IN = RecycledNumbers.class.getSimpleName() + ".in";			
	private final static String FILE_OUT = RecycledNumbers.class.getSimpleName() + ".out";			
	
	public static void main(String[] args) throws Exception {
		final Scanner in = new Scanner(new File(FILE_IN));
		final PrintWriter out = new PrintWriter(FILE_OUT);
		final int testCnt = in.nextInt();
		for (int caseNum = 1; caseNum <= testCnt; ++ caseNum){
			final int a = in.nextInt();
			final int b = in.nextInt();			
			final int last [] = new int [b + 1];
			int result = 0;
			for (int i = a; i <= b; ++ i){
				final String s = String.valueOf(i);			
				for (int pos = 1; pos < s.length(); ++ pos){
					final String newNum = s.substring(pos) + s.substring(0, pos);
					final int newInt = Integer.valueOf(newNum);
					if (newInt > i && newInt <= b){
						if (last[newInt] != i){
							++ result;
							last[newInt] = i;
						}
					}
				}
			}
			out.println(String.format("Case #%d: %d", caseNum, result));
		}
		in.close();
		out.close();
	}

}
