import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

public class CopyOfCopyOfMain {

	static int ndigits(int n) {
		return (int) (Math.log10(n) + 1);
	}

	static int rot(int n, int dig) {
		return (int) ((n % 10) * Math.pow(10, dig - 1)) + (int) (n / 10);
	}

	public static void main(String[] args) throws FileNotFoundException {
		String file = "C-large";
		Scanner in = new Scanner(new File(file + ".in"));
		PrintWriter out = new PrintWriter(new File(file + ".out"));

		int T = in.nextInt();
		for (int t = 1; t <= T; t++) {
			int A = in.nextInt();
			int B = in.nextInt();

			int c = 0;
			int[] list = new int[ndigits(B)];
			numbers: for (int i = A; i <= B; i++) {
				int digs = ndigits(i);
				int rot = i;
				int pairs = 0;

				Arrays.fill(list, -1);
				list[0] = i;

				digits: for (int j = 1; j <= digs + 1; j++) {

					rot = rot(rot, digs);
					if(rot < i)
						continue;

					if (A <= rot && rot <= B) {
						for (int k = 0; k < j; k++) {
							if (list[k] == rot) {
								continue digits;
							}
						}
						pairs++;
						list[j] = rot;
					}
				}

				//c += pairs * (pairs + 1) / 2;
				c += pairs ;
				// c+=digs;
			}
			out.println("Case #" + t + ": " + c);
		}

		in.close();
		out.close();
	}
}

package reusable;

import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;

public abstract class CodeJamBase {
	private final List<String> inputLines;
	private final String filename;
	private int testCases;
	private int index = 0;

	public CodeJamBase(String filename) {
		this.filename = (filename != "") ? filename : "sample";

		try {
			inputLines = Files.readAllLines(Paths.get("data/" + this.filename + ".in"), Charset.defaultCharset());
		} catch (IOException e) {
			throw new RuntimeException("Failed to read file: '" + this.filename + "'");
		}

		setup();
	}

	protected void setup() {
		setTestCases(nextInt());
	}

	protected abstract String solution();

	public void run() {
		long startTime = System.currentTimeMillis();

		List<String> outputLines = new ArrayList<>();

		for (int i = 0; i < testCases; i++) {
			String outputLine = "Case #" + (i + 1) + ": " + solution();
			outputLines.add(outputLine);
			System.out.println(outputLine);
		}

		try {
			Files.write(Paths.get("data/" + filename + ".out"), outputLines, Charset.defaultCharset());
		} catch (IOException e) {
			throw new RuntimeException("Failed to write file: '" + filename + "'");
		}

		System.out.println();
		System.err.println("Total run time: " + ((System.currentTimeMillis() - startTime) / 1000d) + "s");
	}

	protected final String nextString() {
		return inputLines.get(index++);
	}

	protected final int nextInt() {
		return Integer.parseInt(nextString());
	}

	protected final String[] nextStringArray() {
		return inputLines.get(index++).split(" ");
	}

	protected final int[] nextIntArray() {
		String[] items = nextStringArray();

		int[] result = new int[items.length];

		for (int i = 0; i < items.length; i++) {
			result[i] = Integer.parseInt(items[i]);
		}

		return result;
	}

	public final void setTestCases(int testCases) {
		this.testCases = testCases;
	}
}
