package it.simone.google.code.jam2012;

import java.util.HashSet;
import java.util.Set;

public class RecycledNumber implements GoogleCodeExercise {

	int a = 0;
	int b = 0;
	Set<Couple> distinctCouple = null;
	long maxTime = 0;

	private class Couple {
		int x = 0;
		int y = 0;

		public Couple(int x, int y) {
			this.x = x;
			this.y = y;
		}

		@Override
		public int hashCode() {
			final int prime = 31;
			int result = 1;
			result = prime * result + getOuterType().hashCode();
			result = prime * result + x;
			result = prime * result + y;
			return result;
		}

		@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			Couple other = (Couple) obj;
			if (!getOuterType().equals(other.getOuterType()))
				return false;
			if (x == other.x && y == other.y)
				return true;
			if (x == other.y && y == other.x)
				return true;
			return false;
		}

		private RecycledNumber getOuterType() {
			return RecycledNumber.this;
		}

	}

	@Override
	public String execute(String line) {
		int result = 0;

		String[] data = line.split(" ");
		a = Integer.parseInt(data[0]);
		b = Integer.parseInt(data[1]);
		initialize();

		int n = a;
		//
		while (n <= b) {
			result += analize(n);
			n++;
//			if (n % 1000 == 0)
//				System.out.println(n);
		}

		System.out.println(result);
		return "" + result;
	}

	@Override
	public void initialize() {
		distinctCouple = new HashSet<Couple>();
	}

	private int analize(int number) {
		String numString = "" + number;
		initialize();
		for (int i = 1; i < numString.length(); i++) {
			int m = shift(numString, i);
			if (a <= number && number < m && m <= b) {
				Couple couple=new Couple(number,m);
				if (!distinctCouple.contains(couple))
					distinctCouple.add(couple);
			}
		}
		return distinctCouple.size();
	}

	private int shift(String numString, int posx) {

		String result = null;
		result = "" + numString.substring(posx) + numString.substring(0, posx);

		return Integer.parseInt(result.toString());
	}

}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Calendar;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class C {

	private static CodeJamIO io = new CodeJamIO();

	/**
	 * @param args
	 */
	public static void main(String[] args) {

		try {
			init();

			int numCases = Integer.parseInt(io.readNextLine()[0]);
			for (int i=1; i <= numCases; i++) {
				io.debug("Solving Case #" + i + "...");
				solveCase(i);
				io.debug("Case #" + i + " solved!");
			}
			
		} catch (Exception e) {
			e.printStackTrace();
		}

	}

	/**
	 * Performs initial computations
	 */
	private static void init() {
		
	}

	/**
	 * Solves a Test Case
	 * 
	 * @param caseNum
	 * @throws IOException
	 */
	private static void solveCase(int caseNum) throws IOException {
		// Read input
		String[] tokens = io.readNextLine();
		int a = Integer.parseInt(tokens[0]);
		int b = Integer.parseInt(tokens[1]);
		
		// Do the work
		Set<String> recycled = new HashSet<String>();
		for (int n=a; n<=b; n++) {
			String nstr = Integer.toString(n);
			int firstDigit = Integer.parseInt(nstr.substring(0, 1));
			for (int i=1; i<nstr.length(); i++) {
				if (Integer.parseInt(nstr.substring(i, i+1)) < firstDigit) {
					continue;
				} else {
					int m = Integer.parseInt(nstr.substring(i) + nstr.substring(0, i));
					if (m > n && m >= a && m <= b) {
						recycled.add(Integer.toString(n) + Integer.toString(m));
					}
				}
			}
		}

		// Print results
		io.printCase(caseNum).println(recycled.size());

	}

	/**
	 * Input and Output CodeJam style
	 *
	 */
	private static class CodeJamIO {
		private static BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		private static PrintWriter out = new PrintWriter(System.out, true);
		private static PrintWriter err = new PrintWriter(System.err, true);

		public String[] readNextLine() throws IOException {
			String line = in.readLine();
			String[] tokens = line.split("\\s+");
			return tokens;
		}

		public CodeJamIO printCase(int caseNum) { return print("Case #" + caseNum + ": " ); }
		
		public CodeJamIO print(Object o) { out.print(o); return this; }

		public CodeJamIO print(Object o[]) { return print(concat(o)); }

		public CodeJamIO print(Object o[][]) { return print(concat(o)); }

		public CodeJamIO println() { out.println(); return this; }

		public CodeJamIO printlnCase(int caseNum) { return printCase(caseNum).println(); }
		
		public CodeJamIO println(Object o) { return print(o).println(); }

		public CodeJamIO println(Object o[]) { return print(o).println(); }

		public CodeJamIO println(Object o[][]) { return print(concat(o)).println(); }

		public CodeJamIO println(List<Integer[]> l) { return print(concat(l)).println(); }

		
		private String concat(Object[] o) {
			StringBuffer buf = new StringBuffer(10*o.length);
			
			String delim = "";
			for (int i=0; i < o.length; i++) {
				buf.append(delim).append(o[i]);
				delim = " ";
			}
			return buf.toString();
		}
		
		private String concat(Object[][] o) {
			StringBuffer buf = new StringBuffer(100*o.length);
			for (int i=0; i < o.length; i++) {
				buf.append(concat(o[i])).append("\n");
			}
			return buf.toString();
		}

		private String concat(List<Integer[]> list) {
			StringBuffer buf = new StringBuffer();
			String delim = "";
			for (Object[] elm : list) {
				buf.append(delim).append(concat(elm)).append("\n");
			}
			return buf.toString();
		}

		public void debug(String message) {
			err.println(Calendar.getInstance().getTime() + ": " + message);
		}

		public void debug(String message, Object[] o) {
			err.println(Calendar.getInstance().getTime() + ": " + message);
			err.println("\t" + concat(o));
		}

		public void debug(String message, Object[][] o) {
			err.println(Calendar.getInstance().getTime() + ": " + message);
			String values = concat(o);
			err.println("\t" + values.replaceAll("\n", "\n\t"));
		}

		public void debug(String message, List<Integer[]> list) {
			err.println(Calendar.getInstance().getTime() + ": " + message);
			String values = concat(list);
			err.println("\t" + values.replaceAll("\n", "\n\t"));
		}

	}

}
