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#include <iostream>
#include <algorithm>

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

	std::string a;
	std::string b;
	std::string c;

	std::cin >> a >> b;
	std::reverse(a.begin(), a.end());
	std::reverse(b.begin(), b.end());
	int dl = std::max(a.size(), b.size());
	int8_t r = 0;

	c.reserve(dl+1);

	for(int i = 0; i <= dl; ++i) {
		int8_t aa = (i < a.size()) ? a[i]-'0' : 0;
		int8_t bb = (i < b.size()) ? b[i]-'0' : 0;
		int8_t cc = aa + bb + r;
		char ccc = '0' + ((cc < 10) ? cc : (cc - 10));
		c.append(1, ccc);
		r = (cc < 10) ? 0 : 1;
	}
	if(*c.rbegin() == '0') {
		c.pop_back();
	}
	std::reverse(c.begin(), c.end());
	std::cout << c << '\n';
}