[Python]sys.stdin.readline(), sys.stdout.write(), sys.stdin.write()

import sys
# print(help(sys.stdout))
sys.stdout.write("the quick brown fox jumps over the lazy dog.") #返回值是字符串长度
sys.stderr.write("to err is humane, to forgive divine") #err先输出
# print(help(sys.stdin))
result = sys.stdin.readline()
print(result)