#include <iostream>
using namespace std;

int pwr(int i_num, int p);
int f_resume(int r);
int count_num();
void f1(); void f2_i(); void f2_ii(); void f3(); void f4(); void f5_i(); void f5_ii();

int i, remainder, ch, d_ch, num, n_count=1;

int main()
{

	cin >> num;
	count_num();

	while (true)
	{
		ch = (int)num/(pwr(10,count_num()-1));
		switch (n_count)
		{
		case 1:
			{
				f1();
				return 0; //break
			}
		case 2:
			{
				if (ch == 1)
				{
					d_ch = num;
					f2_i();
					return 0; //break
				}
				else
				{
					f2_ii();
					if (f_resume(2) == 0)
						return 0;	//break
					else
						break;
				}
			}
		case 3:
			{
				f3();
				if (f_resume(3) == 0)
						return 0;	//break
				else
						break;
			}
		case 4:
			{
				f4();
				if (f_resume(4) == 0)
						return 0;	//break
				else
						break;
			}
		case 5:
			{
				if (ch == 1)
				{
					d_ch = ((int)num/pwr(10,4));
					num -= (d_ch*10*10*10*10);
					d_ch = (d_ch*10) + ((int)num/pwr(10,3));
					f5_i();
					if (f_resume(4) == 0)
						return 0; //break
					else
						break;
					
				}
				else
				{
					f2_ii();

					ch = ((int)num/pwr(10,4));
					num = num - (ch*10*10*10*10);
					ch = (int)num/pwr(10,3);
	
					if (ch == 0)
					{
						cout << "thousand ";
						if (f_resume(4)==0)
							return 0; //break
						else
							break;
					}
					else
						break;
			
				}
			}
		}	//switch
	}	//while
	cout << "\n";
	return 0;
}


int count_num()
{
	for (i = 10, n_count=1; ; i = i * 10, n_count++)
	{
		remainder = num/(i);
		if (remainder == 0)
		{
			break;
		}
	}
	return (n_count);
}

int f_resume(int r)
{
	num -= ((int)num/pwr(10,r-1))*pwr(10,r-1);
	if (num == 0)
		return 0;
	else
	{
		n_count--;
		return 1;
	}
}

int pwr(int i_num, int p)
{
	int o_num = 1;
	for (int j = 1; j <= p; j++)
	{
		o_num *= i_num;
	}
	return (o_num);
}

void f1()
{
	switch (ch)
	{
	case 0:{cout << "zero "; break;}
	case 1:{cout << "one "; break;}
	case 2:{cout << "two "; break;}
	case 3:{cout << "three "; break;}
	case 4:{cout << "four "; break;}
	case 5:{cout << "five "; break;}
	case 6:{cout << "six "; break;}
	case 7:{cout << "seven "; break;}
	case 8:{cout << "eight "; break;}
	case 9:{cout << "nine "; break;}
	}
}

void f2_i()
{
	switch (d_ch)
	{
	case 10:{cout << "ten "; break;}
	case 11:{cout << "eleven "; break;}
	case 12:{cout << "twelve "; break;}
	case 13:{cout << "thirteen "; break;}
	case 14:{cout << "fourteen "; break;}
	case 15:{cout << "fifteen "; break;}
	case 16:{cout << "sixteen "; break;}
	case 17:{cout << "seventeen "; break;}
	case 18:{cout << "eighteen "; break;}
	case 19:{cout << "nineteen "; break;}
	}
}

void f2_ii()
{
	switch (ch)
	{
	case 2:{cout << "twenty "; break;}
	case 3:{cout << "thirty "; break;}
	case 4:{cout << "forty "; break;}
	case 5:{cout << "fifty "; break;}
	case 6:{cout << "sixty "; break;}
	case 7:{cout << "seventy "; break;}
	case 8:{cout << "eighty "; break;}
	case 9:{cout << "ninty "; break;}
	}
}

void f3()
{
	f1();
	cout << "hundred ";
}

void f4()
{
	f1();
	cout << "thousand ";
}

void f5_i()
{

	f2_i();
	cout << "thousand ";
}

void f5_ii()
{


}