#coding=utf-8
#数到20P54 2017.4.12
for value in range(21):
	print(value)
numbers = [value for value in range(0,1000)]
print(numbers)

#coding=utf-8
#数到20P54 2017.4.12
for value in range(21):
	print(value)
numbers = [value for value in range(0,1000)]
print(numbers)

#coding=utf-8 #数到20P54 2017.4.12