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.PrintStream;
import java.util.HashSet;
import java.util.Scanner;

public class C {

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(new File("input"));
		 System.setOut(new PrintStream("output"));

		int T = in.nextInt();
		for (int t = 1; t <= T; t++) {
			System.out.print("Case #" + t + ": ");
			int a = in.nextInt(), b = in.nextInt();
			int count = 0;
			for (int i = a; i <= b; i++) {
				HashSet<Integer> set = new HashSet<Integer>();
				char[] x = String.valueOf(i).toCharArray();
				int n = x.length;
				char[] y = new char[n];
				for (int j = 0; j < n; j++)
					if (x[j] != '0') {
						for (int k = 0; k < n; k++)
							y[k] = x[(j + k) % n];
						int k = Integer.parseInt(String.valueOf(y));
						if (set.contains(k))
							continue;
						set.add(k);
						if (k != i && a <= k && k <= b)
							count++;
					}
			}
			System.out.println(count/2);
		}
	}
}
