#include<iostream>
#include<cstring>
#include<algorithm>
using namespace std;
int a[10000000],b[100000000],m[100000000],n[100000000],lena,lenb,lenmax,i;
void haha(int *a,int &len)
{string c;
cin>>c;
len=c.size();
for(i=0;i<len;i++)
a[i]=c[i]-48;
reverse(a,a+len);
}
int main()
{haha(a,lena);
haha(b,lenb);
lenmax=max(lena,lenb);
for(i=0;i<=lenmax;i++)
{m[i]=a[i]+b[i]+n[i];
if(m[i]>=10)
{m[i]%=10;
n[i+1]++;}
}
if(m[lenmax]>0)
lenmax++;
for(i=lenmax-1;i>=0;i--)
cout<<m[i];
return 0;
}