import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

/**
 * Copyright 2012 Christopher Schmitz. All Rights Reserved.
 */

package com.isotopeent.codejam.lib.converters;

import com.isotopeent.codejam.lib.InputConverter;

public class DynamicMultiLineConverter implements InputConverter<Object[]> {

	private static final int MAX_PARAM_COUNT = 10;

	private IntArrayLine paramConverter;
	private InputConverter<?> converter;

	private Object[] input;
	private int lineNumber;

	public DynamicMultiLineConverter(InputConverter<?> lineConverter) {
		this(lineConverter, 0);
	}

	public DynamicMultiLineConverter(InputConverter<?> lineConverter, int paramCount) {
		this.converter = lineConverter;
		if (paramCount > 0) {
			paramConverter = new IntArrayLine(paramCount);
		} else {
			paramConverter = new IntArrayLine(new int[MAX_PARAM_COUNT]);
		}
	}

	@Override
	public boolean readLine(String data) {
		if (lineNumber == 0) {
			paramConverter.readLine(data);
			int[] params = paramConverter.generateObject();
			int count = getCount(params);
			input = new Object[count + 1];
			input[lineNumber++] = params;
		} else {
			if (!converter.readLine(data)) {
				input[lineNumber++] = converter.generateObject();
			}
		}

		if (lineNumber >= input.length){
			lineNumber = 0;
		}
		return lineNumber == 0;
	}

	@Override
	public Object[] generateObject() {
		return input;
	}

	/**
	 * default implementation, just uses first parameter value
	 */
	protected int getCount(int[] parameters) {
		return parameters[0];
	}

}
