#include<bits/stdc++.h>
using namespace std;
using LL = long long;
using ULL = unsigned long long;
#define rep(i,n) for(int i=0; i<(n); i++)

int main() {
 double a,b; cin>>a>>b;
 cout<<fixed<<setprecision(11)<<(a+b)<<endl;
 return 0;
}