You must be at 401 and I at 402
Abacus? Time to up the stakes (probably wrong, but hey...):
What about base-36?I'm out of fun interpretations, so.... 415
What about base-36?
Number: BL
417
Base-36 herein is as base-16, except that it utilizes the full alphanumeric English alphabet,
With 'B' being the 11th value in base36 ( 0 not with standing) and 'L' the 21st value, the number 'BL' would equate to: ( ( 11 * 36 ) + 21 = 417 )