Here are two methods to make a 4-digit code: codes can have repeated digits.
method A:
for the first two digits are a even number between 29 and 100
for the last two digits use a multiple of 11

method B :
use for digits in the order odd even odd even
do not use the digit 0

how many more codes can be made with method B than with method A?
in your working you must say how many codes can be made with each method