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.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;


public class RecycledNumbers {

	static int t, a, b;
	
	public static void main(String[] args) throws FileNotFoundException {
		Scanner reader = new Scanner(new File("numbers.in"));
		t = reader.nextInt();
		for (int c = 1; c <= t; c++) {
			a = reader.nextInt();
			b = reader.nextInt();
			int cuenta = 0;
			for (int n = a; n < b; n++) {
				cuenta += eval(n);
			}
			System.out.println("Case #"+c+": "+cuenta);
		}
	}
	
	static int eval(int n){
		String s = ""+n;
		int l = s.length();
		int cuenta = 0;
		int nn;
		ArrayList<Integer> nns = new ArrayList<Integer>();
		for (int i = 1; i < l; i++) {
			s = rotar(s);
			if (s.charAt(0)=='0') continue;
			nn = Integer.parseInt(s);
			if (nn>n && nn<=b && !nns.contains(nn)){
				cuenta++;
				nns.add(nn);
			}
		}
		return cuenta;
	}
	
	static String rotar(String s){
		return s.substring(1) + s.charAt(0); 
	}
}
