#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
int i = 4;
double d = 4.0;
string s = "HackerRank ";
// Declare second integer, double, and String variables.
int i2 = 0;
double d2 = 0.0;
string s2 = "";
// Read and save an integer, double, and String to your variables.
cin >> i2;
cin >> d2;
getline(cin >> ws, s2);
// Note: If you have trouble reading the entire string, please go back and review the Tutorial closely.
// Print the sum of both integer variables on a new line.
cout << i + i2 << endl;
// Print the sum of the double variables on a new line.
cout << fixed << setprecision(1) << d + d2 << endl;
// Concatenate and print the String variables on a new line
cout << s + s2 << endl;
// The 's' variable above should be printed first.
return 0;
}