#include<bits/stdc++.h>
using namespace std;
double a,b;
int main(){
	//long long l=-2e9,r=2e9,mid;
	cin>>a>>b;
	cout<<fixed<<setprecision(2)<<a+b;
	return 0;
}

#include <bits/stdc++.h>
using namespace std;
int main()
{
    float a=0,b=0;
    cin>>a>>b;
    printf("%.2f",a+b);
	return 0;
}