#include<stdio.h>
#include<string.h>

char a[31];
char b[31];
char s[31];
int carryover=0;
char *sum=&s[0];

int main()
{
int adder(char *a,char *b);

while(scanf("%s%s",a,b)!=EOF)
    {
        int i;
        adder(a,b);
        for(i=strlen(s);i;i--)
        printf("%c",s[i-1]);
        printf("\n");
        carryover=0;
        sum=&s[0];
        for(i=0;i<100;i++)
        {
        a[i]='\0';
        b[i]='\0';
        s[i]='\0';
        }
    }
}


int adder(char *a,char *b)
{
   char *p=&a[strlen(a)-1];
   char *q=&b[strlen(b)-1];
   while(*p!='\0'||*q!='\0')
   {
       int k;
   k=(*p-48)+(*q-48)+carryover;
   if(*p=='\0')k=(*q-48)+carryover;
   if(*q=='\0')k=(*p-48)+carryover;
   if(k>9)
       {
           carryover=1;
           *sum=k+38;
       }
   if(k<=9)
       {
          carryover=0;
          *sum=k+48;
       }
   sum++;
   p--;
   q--;
   }
   if(carryover)*sum=49;
}