#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>
#include<utility>

using namespace std;

#define int long long
#define endl "\n"

constexpr long long INF = (long long)1e18;
constexpr long long MOD = 1'000'000'007; 

struct fast_io {
	fast_io(){
		std::cin.tie(nullptr);
		std::ios::sync_with_stdio(false);
	};
} fio;

int mstoi(string a){
	int s = 1;
	int in = 0;
	int res  = 0;;
	
	if(a[0] == '-') s *= -1, in++;
	if(a[0] == '+') s *= 1, in++;
	
	for(int i = in; i < a.size(); i++){
		res = res * 10 + a[i] - '0';
	}
	
	res *= s;
	
	return res;
}

signed main(){
	cout<<fixed<<setprecision(10);
	
	// int A, B;
	string A, B;
	int a, b;
	
	cin>>A>>B;
	// cin>>A>>B;
	
	a = mstoi(A);
	// a = stoi(A);
	b = mstoi(B);
	// b = stoi(B);
	
	if(B[0] == '+'){
		cout<<a+b<<endl;
	} else if(B[0] == '-') {
		cout<<a+b<<endl;
	} else { 
		// string C = A + B;
		// int c = stoi(C);
		
		if(a == 0) cout<<B<<endl;
		else cout<<A+B<<endl;
	}
	
	
	return 0;
}