import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;

public class ReadFile {
	public static void main(String[] args) throws Exception {
		String srcFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt1.in.txt";
		String destFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt0.out";
		File file = new File(srcFile);
		List<String> readData = new ArrayList<String>();
		FileReader fileInputStream = new FileReader(file);
		BufferedReader bufferedReader = new BufferedReader(fileInputStream);
		StringBuilder stringBuilder = new StringBuilder();
		String line = null;
		while ((line = bufferedReader.readLine()) != null) {
			readData.add(line);
		}
		stringBuilder.append(generateOutput(readData));
		File writeFile = new File(destFile);
		if (!writeFile.exists()) {
			writeFile.createNewFile();
		}
		FileWriter fileWriter = new FileWriter(writeFile);
		BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
		bufferedWriter.write(stringBuilder.toString());
		bufferedWriter.close();
		System.out.println("output" + stringBuilder);
	}

	/**
	 * @param number
	 * @return
	 */
	private static String generateOutput(List<String> number) {
		StringBuilder stringBuilder = new StringBuilder();
		for (int i = 0; i < number.size(); i++) {
			if (i == 0) {
				continue;
			} else {
				String tempString = number.get(i);
				String[] temArr = tempString.split(" ");
				stringBuilder.append("Case #" + i + ": ");
				stringBuilder.append(getRecNumbers(temArr[0], temArr[1]));
				stringBuilder.append("\n");
			}
		}
		if (stringBuilder.length() > 0) {
			stringBuilder.deleteCharAt(stringBuilder.length() - 1);
		}
		return stringBuilder.toString();
	}

	// /* This method accepts method for google code jam */
	// private static String method(String value) {
	// int intValue = Integer.valueOf(value);
	// double givenExpr = 3 + Math.sqrt(5);
	// double num = Math.pow(givenExpr, intValue);
	// String valArr[] = (num + "").split("\\.");
	// int finalVal = Integer.valueOf(valArr[0]) % 1000;
	//
	// return String.format("%1$03d", finalVal);
	//
	// }
	//
	// /* This method accepts method for google code jam */
	// private static String method2(String value) {
	// StringTokenizer st = new StringTokenizer(value, " ");
	// String test[] = value.split(" ");
	// StringBuffer str = new StringBuffer();
	//
	// for (int i = 0; i < test.length; i++) {
	// // test[i]=test[test.length-i-1];
	// str.append(test[test.length - i - 1]);
	// str.append(" ");
	// }
	// str.deleteCharAt(str.length() - 1);
	// String strReversedLine = "";
	//
	// while (st.hasMoreTokens()) {
	// strReversedLine = st.nextToken() + " " + strReversedLine;
	// }
	//
	// return str.toString();
	// }

	private static int getRecNumbers(String no1, String no2) {

		int a = Integer.valueOf(no1);
		int b = Integer.valueOf(no2);
		Set<String> dupC = new HashSet<String>();
		for (int i = a; i <= b; i++) {
			int n = i;
			List<String> value = findPerm(n);
			for (String val : value) {
				if (Integer.valueOf(val) <= b && Integer.valueOf(val) >= a
						&& n < Integer.valueOf(val)) {
					dupC.add(n + "-" + val);
				}
			}
		}
		return dupC.size();
	}

	private static List<String> findPerm(int num) {
		String numString = String.valueOf(num);
		List<String> value = new ArrayList<String>();
		for (int i = 0; i < numString.length(); i++) {
			String temp = charIns(numString, i);
			if (!temp.equalsIgnoreCase(numString)) {
				value.add(charIns(numString, i));
			}
		}
		return value;

	}

	public static String charIns(String str, int j) {
		String begin = str.substring(0, j);
		String end = str.substring(j);
		return end + begin;
	}
}
package Qual;
import java.io.*;
import java.math.*;
import java.util.*;


public class C {
	static void start() throws IOException {
		new C().run1();
	}
	
	private final String dir = "D:\\contest\\gcj\\2012\\" + getClass().getPackage().toString().split(" ")[1] + "\\" + getClass().getSimpleName();
//	private final String inputFileName = "sample.txt";
	private final String inputFileName = "C-small-attempt0.in";
	private final String outputFileName = "res.txt";

	int A, B;
	final Set<Integer> st = new HashSet<Integer>();
	int pair(int v) {
		if(st.contains(v)) {
			return 0;
		}
		
		int res = 0;
		String s = v + "";
		for(int i = 0; i < s.length(); i++) {
			s = s.charAt(s.length() - 1) + s.substring(0, s.length() - 1);
			if(s.charAt(0) != '0') {
				final int x = Integer.parseInt(s);
				if(A <= x && x <= B && !st.contains(x)) {
					st.add(x);
					res++;
				}
			}
		}
		return res * (res - 1) / 2;
	}
	
	final int MAX = 2000000;
	boolean[] visited = new boolean[MAX * 10];
	int dfs(int x, int d) {
		if(d == 0) {
//			System.err.println(x + " " + pair(x));
			return pair(x);
		}

		if(st.contains(x)) {
			return 0;
		}
		pair(x);
		
		int res = 0;
		for(int i = 0; i <= 9; i++) {
			if(x != 0 || i != 0) {
				res += dfs(x * 10 + i, d - 1);
			}
		}
		return res;
	}
	
	void run() throws IOException {
		int T = IOFast.nextInt();
		while(T-- != 0) {
			A = IOFast.nextInt();
			B = IOFast.nextInt();
			st.clear();
			int res = 0;
			for(int i = A; i <= B; i++) {
				if(!st.contains(i)) {
					res += pair(i);
				}
			}
			printCase();
			IOFast.out.println(res);
			IOFast.out.flush();
		}
	}

	void run1() throws IOException {
		IOFast.setReader(new FileReader(dir + "\\" + inputFileName));
		IOFast.setWriter(new FileWriter(dir + "\\" + outputFileName));
		run();
	}
	
	private static int CASE;
	private static void printCase() {
		IOFast.out.print("Case #" + ++CASE + ": ");
	}
	
	public static void main(String[] args) throws IOException {
		start();
		IOFast.out.flush();
		IOFast.in.close();
		IOFast.out.close();
	}

	static
	public class IOFast {
		private static BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		private static PrintWriter out = new PrintWriter(System.out);

		//	private static final int BUFFER_SIZE = 50 * 200000;
		private static final StringBuilder buf = new StringBuilder();
		private static boolean[] isDigit = new boolean[256];
		private static boolean[] isSpace = new boolean[256];

		static {
			for(int i = 0; i < 10; i++) {
				isDigit['0' + i] = true;
			}
			isDigit['-'] = true;
			isSpace[' '] = isSpace['\r'] = isSpace['\n'] = isSpace['\t'] = true;
		}

		static boolean endInput;
		
		public static void setReader(Reader r) { in = new BufferedReader(r); }
		public static void setWriter(Writer w) { out = new PrintWriter(w); }

		private static int nextInt() throws IOException {
			boolean plus = false;
			int ret = 0;
			while(true) {
				final int c = in.read();

				if(c == -1) {
					endInput = true;
					return Integer.MIN_VALUE;
				}

				if(isDigit[c]) {
					if(c != '-') {
						plus = true;
						ret = c - '0';
					}
					break;
				}
			}

			while(true) {
				final int c = in.read();
				if(c == -1 || !isDigit[c]) {
					break;
				}
				ret = ret * 10 + c - '0';
			}

			return plus ? ret : -ret;
		}

		private static long nextLong() throws IOException {
			boolean plus = false;
			long ret = 0;
			while(true) {
				final int c = in.read();

				if(c == -1) {
					endInput = true;
					return Integer.MIN_VALUE;
				}

				if(isDigit[c]) {
					if(c != '-') {
						plus = true;
						ret = c - '0';
					}
					break;
				}
			}

			while(true) {
				final int c = in.read();
				if(c == -1 || !isDigit[c]) {
					break;
				}
				ret = ret * 10 + c - '0';
			}

			return plus ? ret : -ret;
		}



		private static String next() throws IOException {
			buf.setLength(0);

			while(true) {
				final int c = in.read();

				if(c == -1) {
					endInput = true;
					return "-1";
				}

				if(!isSpace[c]) {
					buf.append((char)c);
					break;
				}
			}

			while(true) {
				final int c = in.read();

				if(c == -1 || isSpace[c]) {
					break;
				}
				buf.append((char)c);
			}

			return buf.toString();
		}

		private static double nextDouble() throws IOException {
			return Double.parseDouble(next());
		}

	}
}
