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.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.StringTokenizer;


public class Recycle {
	
	int low, high;
	ArrayList<NumPair> instances;
	
	public Recycle(int low, int high) {
		this.low = low;
		this.high = high;
		this.instances = new ArrayList<NumPair>();
	}
	
	public void reset(int low, int high) {
		this.low = low;
		this.high = high;
		this.instances.clear();
	}
	
	NumPair moveDigits(int num, int digits) {
		String numStr = Integer.toString(num);
		int startIndex = numStr.length() - digits;
		String sub = numStr.substring(startIndex);
		String ret = sub.concat(numStr.substring(0,startIndex));	
		return new NumPair(num, Integer.parseInt(ret));
	}
	
	boolean checkRecycled(NumPair num) {
		if (num.orig == num.modded || num.modded > num.orig)
			return false;
		if (num.modded >= low && num.modded <= high) {
			return true;
		} 
		return false;
	}
	
	public void compute() {
		int length = Integer.toString(low).length();
		for (int i=low; i<=high; i++) {
			for (int j=1; j<length; j++) {
				NumPair shifted = moveDigits(i, j);
				if (checkRecycled(shifted)) {
					if (!instances.contains(shifted)) {
						instances.add(shifted);
					}
				}
			}
		}
	}
	
	public int getLow() {
		return low;
	}
	
	public int getInstances() {
		return instances.size();
	}

	public void setLow(int low) {
		this.low = low;
	}

	public int getHigh() {
		return high;
	}

	public void setHigh(int high) {
		this.high = high;
	}

	public static void main(String[] args) {
		File input = new File("C-small-attempt0.in");
		Recycle driver = new Recycle(1111,2222);
		if (!input.canRead())
			System.out.println("Can't read file!");
		int count=1;
		BufferedReader reader;
		try {
			reader = new BufferedReader(new FileReader(input));
			String line = reader.readLine();
			while ((line = reader.readLine()) != null && !line.isEmpty()) {
				StringTokenizer tokenizer = new StringTokenizer(line, " ");
				String low = tokenizer.nextToken();
				String high = tokenizer.nextToken();
				driver.reset(Integer.parseInt(low), Integer.parseInt(high));
				driver.compute();
				System.out.println("Case #" + count +": " + driver.getInstances());
				count++;
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	public class NumPair {
		int orig, modded;
		
		public NumPair(int orig, int modded) {
			this.orig = orig;
			this.modded = modded;
		}
		
		@Override public boolean equals(Object o) {
			NumPair n = (NumPair)o;
			if ((n.orig == orig && n.modded == modded) || (n.orig == modded && n.modded == orig)) {
				return true;
			}  
				return false;
		}
		
		public String toString() {
			return orig + ", " + modded;
		}
	}
	
}
