Main Code

#include <string>

std::string value(int x) {
    std::string res = "";
    if (x == 1) {
            res = "Hello";
    } else if (x == 2) {
            res = "What";
    } else if (x == 3) {
            res = "Are";
    } else if (x == 4) {
            res = "You";
    } else if (x == 5) {
            res = "Doing";
    } else {
            res = "Invalid";
    }
    return res;
}
// checked on: https://godbolt.org/