#include <iostream>
    #include <iomanip>
    #include <limits>
 
    using namespace std;
 
    int main() {
    int i = 4;
    double d = 4.0;
    string s = "HackerRank ";
 
 
    // Declare second integer, double, and String variables.int x;
    int x;
    double y;
    string str;
    // Read and save an integer, double, and String to your variables.
    std::cin >> x;
    std::cin >> y;
    std::cin.ignore();
    getline(std::cin, str);
 
    // 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 << x + i << endl;
    // Print the sum of the double variables on a new line.
    std::cout << std::fixed;
    std::cout << std::setprecision(1);
    cout << y + d << endl;
    // Concatenate and print the String variables on a new line
    // The 's' variable above should be printed first.
    cout << s + str << endl;
 
    return 0;
    }

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