lanqiao 高精度加法

import java.util.Scanner;

public class Main {
	
	public static void main(String[] args) {
		
		Scanner in = new Scanner(System.in);
		int a[] = new int[100];
		int b[] = new int[100];
		String as = in.next();
		String bs = in.next();
		for(int k1=0;k1<as.length();k1++) {//字符串转换成数字的方法
			a[k1] = as.charAt(as.length()-k1-1)-'0';
		}
		for(int k2=0;k2<bs.length();k2++) {
			b[k2] = bs.charAt(bs.length()-k2-1)-'0';
		}
		int c[] = new int[101];
		int remainder = 0;
		int carry = 0;
		for(int i=0;i<a.length;i++) {//原先的混乱逻辑
			remainder = (a[i]+b[i]+carry)%10;
			//remainder = (a[i]+b[i])%10;
			c[i] = remainder;
			//c[i] = remainder+carry;
			//carry = (a[i]+b[i])/10;
			carry = (a[i]+b[i]+carry)/10;
		}
		boolean begin=false;//原先出个大错误，输出数据是反的，应该是从高位往低位输数字
        for(int j=c.length-1;j>=0;j--) {  
            if(begin) {  
                System.out.print(c[j]);  
                continue;  
            }  
            if(c[j-1]!=0)  
                begin=true;  
        } 
		
	}
	
	
}