import?math
x=input（‘請輸入：‘）
x=int（x）
y=x+3
print（y）

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-10-16?10:41??machineLearning\
?????目錄???????????0??2018-10-16?10:41??machineLearning\.idea\
?????目錄???????????0??2018-10-16?10:43??machineLearning\.idea\inspectionProfiles\
?????文件?????????408??2018-10-16?10:39??machineLearning\.idea\machineLearning.iml
?????文件?????????294??2018-10-16?10:39??machineLearning\.idea\misc.xml
?????文件?????????289??2018-10-16?10:39??machineLearning\.idea\modules.xml
?????文件???????15290??2018-10-16?10:39??machineLearning\.idea\workspace.xml
?????文件??????510463??2018-10-16?10:39??machineLearning\HW1.zip
?????目錄???????????0??2018-10-16?10:42??machineLearning\__pycache__\
?????文件????????2981??2018-10-16?10:39??machineLearning\__pycache__\logistic_regression.cpython-36.pyc
?????文件????????2948??2018-10-16?10:42??machineLearning\__pycache__\logistic_regression.cpython-37.pyc
?????文件????????1877??2018-10-16?10:39??machineLearning\__pycache__\mnist.cpython-36.pyc
?????文件????????1805??2018-10-16?10:42??machineLearning\__pycache__\mnist.cpython-37.pyc
?????文件??????????67??2018-10-16?10:39??machineLearning\lianxi.py
?????文件????????4022??2018-10-16?10:39??machineLearning\logistic_regression.py
?????文件????????1161??2018-10-16?10:39??machineLearning\main.py
?????文件???220080342??2018-10-16?10:39??machineLearning\mnist.pkl
?????文件????17051982??2018-10-16?10:40??machineLearning\mnist.pkl.gz
?????文件????????1366??2018-10-16?10:39??machineLearning\mnist.py
?????文件???????34395??2018-10-16?10:39??machineLearning\mnist_logistic_regression.ipynb
?????文件??????508125??2018-10-16?10:39??machineLearning\mnist_logistic_regression.pdf
?????文件?????2625784??2018-10-16?10:41??machineLearning\深度學習環境搭建-鄭歆慰.pdf