There must have been a shortage of number eight badges. Look at the one worn by Nadia, the digit 8 is to the left of the pedals. Had it been a single digit number, the eight would have been over the pedals. This indicates that eight might have been in the 80’s, eighty 1, 2, 3,4 ,5 6, 7, 8 or nine. The second digit having been tipexed out! But at least it's the right way up this time!
Be seeing you