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.IOException;
import java.io.InputStreamReader;


public class Numbers {
	
	public static void main(String args[])throws IOException{
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		String regex = " ";
		int T = Integer.parseInt(in.readLine());
		String str;
		String[] split;
		String[] result = new String[T+1];
		for(int x = 1; x <= T; x++){
			result[x] = "Case #" + x + ": ";
			str = in.readLine();
			split = str.split(regex);
			if(split.length < 2) {
				result[x] = result[x].concat("0");
			} else {
				result[x] = result[x].concat(Integer.toString(getNumberOfPairs(Integer.parseInt(split[0]), Integer.parseInt(split[1]))));
			}
		}
		for(int u = 1; u <= T; u++){
			System.out.println(result[u]);
		}
			
		
	}
	
	public static int getNumberOfPairs(int a, int b){
		int pairs = 0;
		for(int x = a; x < b; x++) {
			for(int y = b; y > x; y--) {
				if(isRecycledPair(x,y)){
					pairs++;
				}
			}
		}
		return pairs;
	}
	
	public static boolean isRecycledPair(int a, int b){
		boolean result = false;
		String A = Integer.toString(a);
		String B = Integer.toString(b);
		String tempA;
		if(A.length() != 1 && B.length() != 1){
			for(int x = 1; x < A.length();x++){
				tempA = A.substring(x, A.length());
				tempA = tempA.concat(A.substring(0, x));
				if(tempA.equals(B)){
					result = true;
				}
			}
		}
		return result;
		
	}

}
