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.*;
import java.text.*;
import java.math.*;

public class RecycledNumbers {
    public static BufferedReader BR;

    public static String readLine() {
        try {
            return BR.readLine();
        } catch(Exception E) {
            System.err.println(E.toString());
            return null;
        }
    }


    // ****** MAIN ******

    public static void main(String [] args) throws Exception {
        BR = new BufferedReader(new InputStreamReader(System.in));

        int testcases = Integer.parseInt(readLine());
        for (int t = 1; t <= testcases; t++) {
            RecycledNumbers instance = new RecycledNumbers();
            instance.solve(t);
        }

    }

    // ****** GLOBAL VARIABLES ******



    public RecycledNumbers() {
    }

    public boolean solve(int caseNumber) {
    	StringTokenizer st = new StringTokenizer(readLine());
    	int a = Integer.parseInt(st.nextToken());
    	int b = Integer.parseInt(st.nextToken());
    	int n = Integer.toString(a).length();
    	long result = 0;
    	for (int i = a; i <= b; ++i) {
    		String s = Integer.toString(i);
    		Set<Integer> seen = new HashSet<Integer>();
    		for (int j = 1; j < n; ++j) {
    			int rotated = Integer.parseInt(s.substring(j) + s.substring(0,j));
    			if (i < rotated && rotated <= b && !seen.contains(rotated)) {
    				seen.add(rotated);
    				++result;
    			}
    		}
    	}
      System.out.println("Case #" + caseNumber + ": " + result);
			return false;
    }


}
