cubelah yeee

Really amazing !

1) key-in the first 3 digits of your handphone number (not include the 019/014/012/017 number) into the calculator

2) multiply by 80

3) add 1

4) multiply by 250

5) plus last four digits of phone number

6) plus last four digits of phone number again

7) minus 250
8) divide by 2 at last
Is it your handphone number ?
AMAZING EEEEH!!!!!