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.io.*;

public class Main {

	public static boolean recycledNumber(int n, int m) {
		String N = String.valueOf(n);
		String M = String.valueOf(m);

		for(int i = 0; i < N.length(); i++) {
			String firstPart = N.substring(0, i);
			String endPart = N.substring(i, N.length());
			String combined = endPart + firstPart;
			if(M.equals(combined)) return true;
		}
		return false;
	}



	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(new File("testcase.in"));
		int testcases = sc.nextInt();
		sc.nextLine();

		for(int testcase = 1; testcase <= testcases; testcase++) {
			int A = sc.nextInt();
			int B = sc.nextInt();
			int recycledPairs = 0;

			for(int n = A; n < B; n++) {
				for(int m = n+1; m <= B; m++) {
					if(recycledNumber(n, m)) recycledPairs++;
				}
			}

			System.out.printf("Case #%d: %d\n", testcase, recycledPairs);
		}
	}
}