import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

package ch.googlecodejam.qualround;

import java.util.ArrayList;
import java.util.List;

public class RecycledNumbers {

    public static String solve(List<List<String>> values) {

        StringBuilder result = new StringBuilder();

        int numberOfLine = 1;
        for (List<String> line : values) {
            int minValue = Integer.parseInt(line.get(0));
            int maxValue = Integer.parseInt(line.get(1));

            int numberOfRecycledNumbers = getNumberOfRecycledNumbers(minValue,
                    maxValue);

            result.append("Case #" + numberOfLine + ": "
                    + numberOfRecycledNumbers + "\n");
            numberOfLine++;
        }

        return result.toString();
    }

    private static int getNumberOfRecycledNumbers(int minValue, int maxValue) {

        int numberOfRececlyedNumbers = 0;
        for (int numberToTest = minValue; numberToTest < maxValue; numberToTest++) {
            numberOfRececlyedNumbers += hasRecycledNumber(numberToTest,
                    maxValue);
        }
        return numberOfRececlyedNumbers;
    }

    private static int hasRecycledNumber(int number, int maxValue) {

        String originalNumber = String.valueOf(number);
        int numberOfRecycledNumber = 0;
        List<String> alreadyRecycled = new ArrayList<String>();

        for (int i = originalNumber.length() - 1; i > 0; i--) {
            String recycledNumber = getSwapedNumber(i, originalNumber);

            if (recycledNumber.charAt(0) != '0') {
                int valueRecycledNumber = Integer.parseInt(recycledNumber);
                if (valueRecycledNumber > number
                        && valueRecycledNumber <= maxValue && !alreadyRecycled.contains(recycledNumber)) {
                    numberOfRecycledNumber++;
                    alreadyRecycled.add(recycledNumber);
                } 
            }

        }

        return numberOfRecycledNumber;
    }

    public static String getSwapedNumber(int startIndex, String original) {

        StringBuilder swaped = new StringBuilder();
        swaped.append(original.substring(startIndex));
        swaped.append(original.substring(0, startIndex));
        return swaped.toString();
    }
}
