#!/usr/bin/env python3
# -*- coding: UTF-8 -*-

import time
import keyword
import sys

'''
# \n换行，r禁止换行
print("换行：""ABVCADA\nFAFASFA")
print("禁止换行："r"ABVCADA\nFAFASFA")
'''

'''
# 取值
str = '1234567890'

print(str)
print(str[1])
print(str +)
'''

'''
A = input()
print(A)
'''

x = 'runoob'
sys.stdout.write(x + '\n')