最优作答（doge）

#include<iostream>
#include<cstring>
#define str string
#define the_easiest_input_function_in_cpp cin
#define CPPstd_output cout
#define in =
#define a 100000
#define galaxy +10000
#define far +2000
#define away +514

using namespace std;
int main()
{
    long long ago in a galaxy far far away ;
    
    str string_that_I_want_to_output;
    string_that_I_want_to_output = "hello world";
    int practice_time=2.5;
    str string_that_I_need_to_input;
    getline(the_easiest_input_function_in_cpp,string_that_I_need_to_input);
    CPPstd_output<<string_that_I_want_to_output ;
    str name = "CaiXuKun";
    return 0 ;////////DOGE