#include <bits/stdc++.h>
using namespace std;

string add(string a, string b)
{
    string c="";

    reverse(a.begin(), a.end());
    reverse(b.begin(), b.end());

    if(a.length()<b.length())
        swap(a, b);

    while(b.length()<a.length())
        b+='0';

    while(c.length()<a.length())
        c+='0';
    c+='0';

    int r=0;
    int n=a.length();
    for(int i=0; i<n; ++i)
    {
        c[i]=((a[i]-48+b[i]-48+r)%10)+48;
        r=(a[i]-48+b[i]-48+r)/10;
    }

    if(r)
        c[n]=r+48;
    else
        c.erase(c.end()-1);

    reverse(c.begin(), c.end());
    return c;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    string a, b;
    cin>>a>>b;
    cout<<add(a, b)<<"\n";
    return 0;
}