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 problemC;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.Writer;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class RecycledNumbers {
	
	public static void main(String[] args) throws Exception {
		
		Writer write = new FileWriter(new File("out.txt"));
		Writer writer = new BufferedWriter(write);
		
		Scanner scan = new Scanner(new File("C-small-attempt0.in.txt"));
		
		int num = scan.nextInt();
		for(int i = 1; i<=num; i++) {
			int lower = scan.nextInt();
			int upper = scan.nextInt();
			int count = 0;
			for(int j = lower; j<upper; j++) {
				Set<String> iterations = iterations(""+j);
				for(int k = j+1; k<=upper; k++) {
					String s = ""+k;
					if(iterations.contains(s)) count++;
				}
			}
			
			writer.write("Case #"+i+": "+count+"\n");
			
		}
		
		writer.close();
		write.close();
		
		
	}
	
	
	public static Set<String> iterations(String in) {
		Set<String> strings = new HashSet<String>();
		
		String current = new String(in);
		strings.add(current);
		for(int i = 0; i<current.length(); i++) {
			String start = current.substring(0, current.length()-1);
			String end = current.substring(current.length()-1);
			
			current = end+start;
			strings.add(current);
		}
		
		//System.out.println(strings);
		
		return strings;
	}

}
