+O[ V = (Any)Engineering ]---->( I = Coffee )ㄱ
l
l
>
<
>
[ R = Problem ex) exam ]
l
l
@
@
@
( L = Grinding all night with books )
l
l
------
------
( C = Your Regret to your laziness )
l
- O ------------------------ ( LED = your result ) ---

and R on wire is your health of body and mind