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

public class C {

    void solve() throws IOException {
        in("C-large.in"); out("C-large.out");

        long tm = System.currentTimeMillis();
        boolean[] mask = new boolean[2000000];
        int[] r = new int[10];
        int t = readInt();
        for (int cs = 1; cs <= t; ++cs) {
            int a = readInt();
            int b = readInt();
            int ans = 0;
            for (int m = a + 1; m <= b; ++m) {
                char[] d = String.valueOf(m).toCharArray();
                int c = 0;
                for (int i = 1; i < d.length; ++i) {
                    if (d[i] != '0' && d[i] <= d[0]) {
                        int n = 0;
                        for (int j = 0; j < d.length; ++j) {
                            int jj = i + j;
                            if (jj >= d.length) jj -= d.length;
                            n = n * 10 + (d[jj] - '0');
                        }
                        if (n >= a && n < m && !mask[n]) {
                            ++ans;
                            mask[n] = true;
                            r[c++] = n;
                        }
                    }
                }
                for (int i = 0; i < c; ++i) {
                    mask[r[i]] = false;
                }
            }
            println("Case #" + cs + ": " + ans);
            //System.out.println(cs);
        }
        System.out.println("time: " + (System.currentTimeMillis() - tm));
        exit();
    }

    void in(String name) throws IOException {
        if (name.equals("__std")) {
            in = new BufferedReader(new InputStreamReader(System.in));
        } else {
            in = new BufferedReader(new FileReader(name));
        }
    }

    void out(String name) throws IOException {
        if (name.equals("__std")) {
            out = new PrintWriter(System.out);
        } else {
            out = new PrintWriter(name);
        }
    }

    void exit() {
        out.close();
        System.exit(0);
    }

    int readInt() throws IOException {
        return Integer.parseInt(readToken());
    }

    long readLong() throws IOException {
        return Long.parseLong(readToken());
    }

    double readDouble() throws IOException {
        return Double.parseDouble(readToken());
    }

    String readLine() throws IOException {
        st = null;
        return in.readLine();
    }

    String readToken() throws IOException {
        while (st == null || !st.hasMoreTokens()) {
            st = new StringTokenizer(in.readLine());
        }
        return st.nextToken();
    }

    boolean eof() throws IOException {
        return !in.ready();
    }

    void print(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void println(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void print(Object value) {
        out.print(value);
    }

    void println(Object value) {
        out.println(value);
    }

    void println() {
        out.println();
    }

    StringTokenizer st;

    BufferedReader in;
    PrintWriter out;

    public static void main(String[] args) throws IOException {
        new C().solve();
    }
}

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Set;

public class Recycled_Numbers {
	public static void main(String[] args) {
		try {
			// Initialize
			InputStreamReader converter = new InputStreamReader(System.in);
			BufferedReader in = new BufferedReader(converter);
			String curLine = in.readLine();
			String[] numbers;
			int A;
			int B;
			
			// Find number of cases
			int N = Integer.parseInt(curLine);
			
			// Read line by line
			for (int line = 0; line < N; line++) {
				curLine = in.readLine();
				numbers = curLine.split(" ");
				A = Integer.parseInt(numbers[0]);
				B = Integer.parseInt(numbers[1]);
				int total = 0;
				HashMap<Integer, Integer> hm = new HashMap<Integer, Integer>();
				
				for (int number = A; number <= B; number++) {
					// parse the number as a string
					String s = Integer.toString(number);
					String[] digits = new String[s.length()];
					int numZeroes = 0;
					// the array of possible recycled numbers in string form
					for (int digit = 0; digit < digits.length; digit++) {
						digits[digit] = s.substring(digit) + s.substring(0, digit);
						if (digits[digit].charAt(0) == '0') numZeroes++;
					}
					// convert to integers
					int[] dint = new int[digits.length-numZeroes];
					int intdigits = 0;
					for (int digit = 0; digit < digits.length; digit++) {
						if (digits[digit].charAt(0) != '0') {
							dint[intdigits++] = Integer.parseInt(digits[digit]);
						}
					}
					// check if in hashtable
					if (!hm.containsKey(dint[0])) {	
						// put into a set only if between A and B
						Set<Integer> set = new HashSet<Integer>();
						for (int digit = 0; digit < dint.length; digit++) {
							hm.put(dint[digit], 0);
							if (dint[digit] >= A && dint[digit] <= B)
								set.add(dint[digit]);
						}
						// find the set size and add the appropriate number of pairs
						int numSet = set.size();
						total += numSet * (numSet-1) / 2;
					}
				}
				
				System.out.println("Case #" + (line+1) + ": " + total);
			}
		} catch(Exception e) {
			System.out.println("Error: " + e.getMessage());
		}
	}
}
