// G. Hagopian == PPP11 Drill

#include <iostream>

using namespace std;

int main() {
	int birth_year{ 1958 };
	cout << "dec:" << '\t' << birth_year << "\thex:" << '\t' 
		 << hex << birth_year << "\toctal: " << oct << '\t' << birth_year << endl;
	cout << showbase <<  "dec:" << '\t' << birth_year << "\thex:" << '\t'
		<< hex << birth_year << "\toctal: " << oct << '\t' << birth_year << endl;
	cout << "age: " << dec << 61 << endl;
	cout << 1234567.89 << fixed << '\t' << 1234567.89 << scientific << '\t' << 1234567.89;
}