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 qualification;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class c {

	public static void main(String[] args){
		if(args.length<1){
			System.out.println("Usage: <fnIn>");
		}
		String fn = args[0];
		String fnOut = toFnOut(fn);
		try{
			BufferedReader br = new BufferedReader(new FileReader(fn));
			BufferedWriter bw = new BufferedWriter(new FileWriter(fnOut));
			int NCase = Integer.valueOf(br.readLine().trim());
			long stime = System.currentTimeMillis();
			for(int icase=0;icase<NCase;icase++){
				String[] a =  br.readLine().trim().split("\\s+");
				int result = process(a[0],a[1]);
				String out = "Case #"+(icase+1)+": "+result;
				bw.write(out,0,out.length());
				bw.newLine();
				long ctime = System.currentTimeMillis();
				System.out.println(String.format("--- Done: #%2d,%3.0fs, ends in:%2.1fm",(icase+1),(ctime-stime)*0.001,(ctime-stime)*0.001/60*NCase/(icase+1)));
			}
			br.close();
			bw.close();
		}catch(IOException ex){
			System.out.println(ex);
		}
	}
	static int process(String X, String Y){
		int xlenght = X.length();
		int ylength = Y.length();
		if( xlenght == 1 && ylength == 1 ) return 0;
		
		int x = Integer.valueOf(X);
		int y = Integer.valueOf(Y);
		String K = X;
		int k = x;
		int result = 0;
		while(k>=x && k<=y ){
			int klength = K.length();
			if(klength ==1) k++;
			else{ 
				for(int r = 1;r<klength;r++){
					int newk = Integer.valueOf(K.substring(r)+K.substring(0, r));
					if(newk==k) break;
					if(newk>=x && newk>k && newk<=y ){
						result++;
					}
				}
				k++;
			}
		
		K = Integer.toString(k);	
		}
		
		return result;
	}

	
	static String toFnOut(String fn){
		if(fn.lastIndexOf('.')!=-1){
			return fn.substring(0,fn.lastIndexOf('.'))+".out";
		}else return fn + ".out";
	}
}
