Calculate your phone number

1. Type the first three digits of your phone into a calculator (note: only for seven-digit numbers)
2. Multiply that number by 80
3. Add 1
4. Multiply with 250
5. Plus the last 4 of your phone number
6. Plus the last 4 digits of your phone again
7. minus 250
8. Share with two
9. You should get your phone number

П.С. do not type 064 or 063 but just number (7-digit digit)