Step 1.

Pick a color and remember it's number

1	2	3
4	5	6
7	8	9

Step 2.

Multiply your color number by 2

Add 5 to that number

Multiply that number by 50 (you can use a calculator :)

Add 12345 to that number

Subtract your 4 digit year you were born in

Step 3

Type in the number you have.

Have you had your birthday yet this year?
Yes    No