#include <iostream>
#include <string>

bool MakeHoge(std::string Str){
	int SP = 0;
	for (std::size_t i = 0; i+SP < Str.size(); i++){
		if (Str[i + SP] == ' ')SP++;
		if ((i) % 2 == 0)std::cout << Str[i + SP] << ' ';
	}
	std::cout << std::endl;
	SP = 0;
	for (std::size_t i = 0; i+SP < Str.size(); i++){
		if (Str[i + SP] == ' ')SP++;
		if ((i) % 2 == 1)std::cout << Str[i + SP] << ' ';
	}
	std::cout << std::endl;
	return true;
}

int main(){
	std::string Str1= "123456789";
	std::string Str2 = "The earth turns around the sun.";
	std::string Str3 = "wa wa wa w w .";

	MakeHoge(Str1);
	MakeHoge(Str2);
	MakeHoge(Str3);

	return 0;
}