Codeforces Ultra-Fast Mathematician

题目链接：http://codeforces.com/problemset/problem/61/A

import java.util.Scanner;public class UltraFastMathematician {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);String string = scanner.next();String string2 = scanner.next();StringBuilder stringBuilder = new StringBuilder();for(int i = 0; i < string.length(); i++) {if(string.charAt(i) == string2.charAt(i)) {stringBuilder.append(0);} else {stringBuilder.append(1);}}System.out.println(stringBuilder.toString());}}