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#include<bits/stdc++.h>
#define fast ios_base::sync_with_stdio(0);cin.tie(0);
#define ll long long
using namespace std;

string suma(string str1, string str2)
{

	if (str1.length() > str2.length())
		swap(str1, str2);

	string str = "";

	ll n1 = str1.length(), n2 = str2.length();
	ll diff = n2 - n1;

	ll num = 0;

	for (int i=n1-1; i>=0; i--)
	{
		ll sum = ((str1[i]-'0') +
				(str2[i+diff]-'0') +
				num);
		str.push_back(sum%10 + '0');
		num = sum/10;
	}

	for (int i=n2-n1-1; i>=0; i--)
	{
		ll sum = ((str2[i]-'0')+num);
		str.push_back(sum%10 + '0');
		num = sum/10;
	}

	if (num)
		str.push_back(num+'0');

	reverse(str.begin(), str.end());

	return str;
}

int main()
{
	fast;
    string l1, l2;
    cin>>l1>>l2;
	cout << suma(l1, l2);
	return 0;
}