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;
	}
}

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Reader;
import java.io.StreamTokenizer;


public class MySolution {
	public static void main(String[] a) throws IOException {
		sumfile("C-small-attempt0.in");
	}

	static void sumfile(String filename) throws IOException {
		int tests=0;
		int A=0;
		int B=0;
		int count=0;
		Reader r = new BufferedReader(new FileReader(filename));
		StreamTokenizer stok = new StreamTokenizer(r);
		stok.parseNumbers();
		stok.nextToken();
		if (stok.ttype == StreamTokenizer.TT_NUMBER) {
			tests=(int)stok.nval;
		}
		FileWriter fw = new FileWriter("result.txt");
		fw.write("");
		fw.close();
		for(int i=0;i<tests;i++){
			stok.nextToken();
			if (stok.ttype == StreamTokenizer.TT_NUMBER) {
				A=(int)stok.nval;
			}
			stok.nextToken();
			if (stok.ttype == StreamTokenizer.TT_NUMBER) {
				B=(int)stok.nval;
			}
			for(int ii=A;ii<=B;ii++){
				String tmp = ii+"";
				int size=tmp.length();
				int[] allchange=new int[size-1];
				for(int j=1;j<size;j++){
					String tmp2=tmp.substring(j, tmp.length())+tmp.substring(0, j);
					int change=Integer.parseInt(tmp2);
					allchange[j-1]=change;
					int sign=0;
					for(int k=0;k<j-1;k++){
						if(allchange[k]==change){
							//System.out.println("Bingo"+ii);
							sign=1;
						}
					}
					if(change>ii&&change<=B&&sign!=1){
						count++;
						//System.out.print("("+ii+","+change+") ");
					}
				}
				
				
			}
			
			fw = new FileWriter("result.txt",true);  
			String s ="Case #"+(i+1)+": "+count+"\n";  
			fw.write(s,0,s.length());  
			fw.flush();
			System.out.println("Case #"+(i+1)+": "+count);
			count=0;
		}
	}
}
