# memes will be numbers in this case
from random import randint
from time import sleep

# set x to "null" so it is defined in memory
x = "null"

while True:
    # create a temporary value (meme)
    temp = randint(0,10)
    # check if x is already this value (no change in top meme)
    # if it's NOT, then we assign x as this value
    if temp != x:
        x = temp
        print("x assigned to %s" % (x))
    # then we sleep until loop restarts
    sleep(1800