# -*-coding:utf-8 -*- 
__author__ = 'Yemilice_lau'
a = input('Please input a number:>')
if a > 10:
    print 'good!'
elif a > 20:
    print 'nice!'
elif a > 30:
    print 'bad!'
else:
    print 'HHHHHH'











# if __name__ == '__main__':