How to understand how and where to write input and output

Answer 1

Ask without problem but try to do C++ course in SoloLearn

Answer 2

Go to Code Playground and begin

Answer 3

where do you need. Usually inputs are first and output last but always depend of your project

Answer 4

You can do an input for name and show
HELLO name
and next input for birthday, calculate with that data the age and output
HELLO name, you are age years old

Answer 5

actually i am a begginer and i have lots of question

Answer 6

if i want to creat a programme by which command should i start