import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

import java.io.*;
import java.util.StringTokenizer;


public class C {
	
	static boolean isrecycle (long n, long m){
		
		String a,b;
		char ac[],c;
		int k;
		boolean t=false;
		a=String.valueOf(n);
		b=String.valueOf(m);
		
		
		
		for(int j=1;j<b.length();j++){
			ac=a.toCharArray();
			c=ac[0];k=0;
			for(int i=0;i<ac.length-1;i++){
				ac[i]=ac[i+1];k++;
			}
			ac[k]=c;
			
			if(String.valueOf(ac).compareTo(b)==0) {t=true;break;}
			else a=String.valueOf(ac);
			
		}
		
		return t;
		
	}
	
	
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("C.in"));
		PrintWriter out = new PrintWriter(new FileWriter("C.out"));
		String l;
		int p,count;
		long n,m;
		boolean esc=false;
		
	p=Integer.parseInt(in.readLine());
		
for(int j=1;j<=p;j++){
			
			l=in.readLine();
			StringTokenizer st = new StringTokenizer(l);
			n=Long.parseLong(st.nextToken());
			m=Long.parseLong(st.nextToken());
			count=0;
			
			for(long q=n;q<=m;q++)
				for(long r=q+1;r<=m;r++)
			{
				if(C.isrecycle(r, q)) count++;
			}
						
			if(esc==true) out.println();
			else esc=true;
			out.print("Case #"+j+": "+count);
			
			
}
in.close();
out.close();
		
	}

}
