#include<stdio.h>#include<string.h>int MAX(int a,int b){    if(a>b)        return a;    return b;}void turn(char *p,char *q){    char t=*p;    *p=*q;    *q=t;}void change(char a[],int n){    int head=0,tail=n;    while(head<tail){        turn(a+head,a+tail);        tail--;        head++;    }}int main(){    char digit1[1010],digit2[1010],digit3[1010];    while(scanf("%s%s",digit1,digit2)!=EOF){    memset(digit1+strlen(digit1)+1,‘0‘,sizeof(digit1)-strlen(digit1));    memset(digit2+strlen(digit2)+1,‘0‘,sizeof(digit2)-strlen(digit2));    memset(digit3,‘0‘,sizeof(digit3));    int i,len1,len2,len3;    len1=1000;    while(digit1[len1]==‘0‘&&len1>1){        len1--;    }    change(digit1,len1);    len2=1000;    while(digit2[len2]==‘0‘&&len2>1)        len2--;    change(digit2,len2);    for(i=0;i<=MAX(len1,len2);i++)    {        digit3[i]=digit3[i]+digit1[i]+digit2[i]-‘0‘-‘0‘;        if(digit3[i]>=‘0‘+10){            digit3[i+1]++;            digit3[i]-=10;        }    }    len3=1001;    while(digit3[len3]==‘0‘&&len3>1)        len3--;    //printf("%d\n",len3);    for(i=len3;i>0;i--)        printf("%c",digit3[i]);    printf("\n");    }    return 0;}