#include <bits/stdc++.h>

using namespace std;

string a,b;
vector<int> A,B,C;

vector<int> add (vector<int> &A,vector<int> &B)
{
	if (A.size() < B.size()) return (B,A);
	
	int t = 0;
	for (int i = 0; i < A.size(); i ++){
		t += A[i];
		if (i < B.size()) {
			t += B[i];
			C.push_back (t%10);
			t /= 10;
		}
	}
	if (t) C.push_back(t);
	return C;
}

int main ()
{
	cin >> a >> b;
	
	for (int i = a.size()-1; i >= 0 ; i -- ) A.push_back (a[i] - '0');
	for (int i = b.size()-1; i >= 0; i-- ) B.push_back (b[i] - '0');
	
	auto C = add(A,B);
	
	for (int i = C.size()-1; i >= 0; i--) cout << C[i];
	return 0;
}

代码有什么问题吗为甚我拿ide 没事 一交就编辑错误