/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package recyclednumbers;

import java.util.HashSet;

/**
 *
 * @author vandit
 */
public class RecycleNumbers {

    private HashSet<String> numbers = new HashSet<String>();
    private HashSet<String> initialTempNumbers = new HashSet<String>();
    private HashSet<String> finalTempNumbers = new HashSet<String>();

    HashSet<Pair> numberPairs = new HashSet<Pair>();


    private void findRecycledNumbers(int start, int end, int places) {


        for (int i = start; i <= end; i++) {
            String initialNumber = Integer.toString(i);
            //if (!(numbers.contains(initialNumber) || finalTempNumbers.contains(initialNumber))) {

                StringBuffer tempNumber = new StringBuffer(initialNumber);
                int len = tempNumber.length();
                int startIndexToMove = len - places;
                String tempString = tempNumber.substring(startIndexToMove);
                if ((places == 1 && tempString.equals("0")) || tempString.charAt(0) == '0') {
                    continue;
                }
                tempNumber.delete(startIndexToMove, len);
                String finalTempNumber = tempString + tempNumber.toString();

                if (! (finalTempNumber.equals(initialNumber) || Integer.parseInt(finalTempNumber) > end || Integer.parseInt(finalTempNumber) < Integer.parseInt(initialNumber))) {
                    numbers.add(initialNumber);
                    finalTempNumbers.add(finalTempNumber);
                    Pair pair = new Pair(finalTempNumber,initialNumber);
                    numberPairs.add(pair);
                }
            }

        

    }

    public HashSet<Pair> findAllRecycledNumbers(int start, int end) {
        int length = Integer.toString(start).length();
        for (int i = 1; i < length; i++) {
            findRecycledNumbers(start, end, i);
        }
        return numberPairs;
    }
}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;


public class RecycledNumbers {

	public static void main(String[] args) throws NumberFormatException, IOException {
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int cases = Integer.parseInt(br.readLine());
		int a, b, q;
		String[] tok;
		for(int i = 1; i <= cases; i++){
			 tok = br.readLine().split(" ");
			 a = Integer.parseInt(tok[0]);
			 b = Integer.parseInt(tok[1]);
			 q = 0;
			 for(int j = a; j < b; j++){
				 for(int k = j+1; k <= b; k++){
					 if(isRecycled(j,k))
						 q++;
				 }
			 }
			 System.out.println("Case #"+i+": "+q);
		}

	}
	
	static boolean isRecycled(int n1, int n2){
		String a = Integer.toString(n1);
		String b = Integer.toString(n2);
		StringBuilder sb;
		String x;
		for(int i = a.length()-1; i >= 0; i--){
			sb = new StringBuilder(a.substring(i) + a.substring(0, i));
			x = sb.toString(); 
			if(x.equals(b)){
				return true;
			}
		}
		return false;
	}

}
