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.PrintWriter;
import java.util.StringTokenizer;

public class QC {

    static final String TASK_ID = "qc";
    static BufferedReader reader;
    static PrintWriter writer;

    public static void main(String[] args) {
        try {
            long now = System.currentTimeMillis();
            reader = new BufferedReader(new FileReader(TASK_ID + ".in"));
            writer = new PrintWriter(TASK_ID + ".out");

            int numTests = Integer.parseInt(reader.readLine());

            for (int testId = 0; testId < numTests; testId++) {
                Solver solver = new Solver(testId);
                solver.readInput();
                solver.run();
                solver.printOutput();
            }

            reader.close();
            writer.close();
            System.out.println(System.currentTimeMillis() - now + "ms");
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    static class Solver {

        private int testId;
        private int A, B;
        private int result;

        public Solver(int testId) {
            this.testId = testId;
        }

        public void run() {
            int digit = (int) Math.log10(A) + 1;
            int div=1;
            int pow = (int) Math.pow(10,digit);

            System.out.println("=============== A="+A+"  B="+B+"  ====================");
            for (int n=A; n<=B; n++) {
                int div2 = div;
                int pow2 = pow;
                int[] matches = new int[digit-1];
                int count = 0;
                for (int j=1; j<digit; j++) {
                    div2*=10;
                    pow2/=10;
                    int m = (n % div2) * pow2 + n / div2; //shift last digit to front
                    if (n<m && m<=B) {
                        boolean exists = false;
                        for (int k=0; k<count; k++) {
                            if (matches[k]==m) {
                                exists=true;
                                break;
                            }
                        }
                        if (!exists) {
                            result++;
                            System.out.println("("+n+" , "+m+")");
                            matches[count++]=m;
                        }
                    }
                }
            }
            System.out.println(result);
        }

        private void readInput() {
            try {
                String line = reader.readLine();
                StringTokenizer st = new StringTokenizer(line);
                A = Integer.parseInt(st.nextToken());
                B = Integer.parseInt(st.nextToken());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }

        private void printOutput() {
            writer.println("Case #"+(testId+1)+": "+ result);
        }
    }
}
