Birthday Equation

Start with your birth month and add 18.
Multiply by 25, then subtract 333.
Multiply by 8, then subtract 554.
Divide by 2, then add the day of your birth.
Multiply by 5, then add 692.
Multiply by 20, then add the last two digits of your birth year.
Once you have that number give it me and I will tell you your birthday and year.