Fifth buy call

This time gonna be a special 1.... i mean the way i make the buy call.
those who got the answer... please keep it between us... for awhile.. lol
IT's time to do some mathematics.

Counter number: __ __ __ __

1. 1+2+1+2+1+3+1+2+1+3+1+2+3- 19= __
2. 1+2+1+2+2+2+2+1+3+3+3+2+2-18= __
3. 1+2+1+2+2+3+3+3+1+2+1+1+1-17= __
4. 1+1+1+1+1+2+3+2+1+1+2+2+1-16= __

Simple maths..
YOU CAN DO IT!!! :)

This buy call is given by my source. But i will give some opinion after you guys know what is the answer.

Buy at your own risk!! haha (especially this 1 )
because u might get the wrong answer... calculate for a few times , make sure u get the correct 1.