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.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;


public class RecycledPairs {
	public static void main(String []args) throws NumberFormatException, IOException{
		BufferedReader in = new BufferedReader(new FileReader("input.in"));
		String hm="", line[];
		int n =Integer.valueOf(in.readLine()), m=1, a, b, c;
		for(m=1;m<=n;m++){
			System.out.print(m+" ");
			line=in.readLine().split(" ");
			a=Integer.valueOf(line[0]); b=Integer.valueOf(line[1]);
			c=0;
			for(int i=a;i<b;i++){
				for(int j=i+1;j<=b;j++){
					//System.out.println("ANA: "+i+" "+j);
					if(recycled(String.valueOf(i),String.valueOf(j))) c++;
				}
			}
			hm+="Case #"+m+": "+c+"\n";
		}
		System.out.println();
		System.out.println(hm);
	}

	private static boolean recycled(String n, String m) {
		String aux=""; int li=0;
		int leng=n.length();
		//System.out.println("Length: "+leng);
		if(leng==1) return false;
		for(int i=leng-1;i>0;i--){
			aux=String.valueOf(n.charAt(leng-1));
			aux+=n.substring(0, leng-1);
			n=aux;
			//System.out.println(aux+" "+m);
			if(n.equals(m))
				return true;
		}
		return false;
	}
}
