n = int(input())
if 8 <= n <= 10:
    print('ertongzu')
if 11 <= n <= 14:
    print('shaonianzu')
if 15 <= n <= 30:
    print('qingnianzu')

/**************************************************************
	Problem: 1670
	User: admin
	Language: Python
	Result: Accepted
	Time:208 ms
	Memory:34244 kb
****************************************************************/