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#include<bits/stdc++.h>
using namespace std;
int a[105],b[105],c[105];
string s1,s2;
int l1,l2;
int main(){
cin >> s1 >> s2;
l1 = s1.length();
l2 = s2.length();
for(int i=0;i<l1;i++) a[l1-i] = s1[i] - '0';
for(int i=0;i<l2;i++) b[l2-i] = s2[i] - '0';
int l = max(l1,l2);
for(int i=1;i<=l;i++){
c[i] += a[i] + b[i];
if(c[i]>9){
c[i+1] = 1;
c[i] %= 10;
}
}
if(c[l+1]) l++;
for(int i=l;i>=1;i--) cout << c[i];
return 0;
}