#include<bits/stdc++.h>
using namespace std;
int main(){
    char a[500],b[500];
    cin>>a>>b;
    int l=max(strlen(a),strlen(b));
    int c[501]={0};
    for(int i=1;i<=l;i++){
        c[i]+=(int(a[i])-'0')+(int(b[i])-'0');
        c[i+1]=c[i]/10;
        c[i]%=10;
    }
    for(int i=1;i<=l;i++)cout<<c[i];
    return 0;
}