# your code goes here
from random import shuffle
foo = []
foo.append([1, 2, 3])
foo.append([4, 5, 6])
foo.append([7, 8, 9])
shuffle(foo)
for ii, sublist in enumerate(foo): shuffle(foo[ii])
print(foo)
IyB5b3VyIGNvZGUgZ29lcyBoZXJlCgoKZnJvbSByYW5kb20gaW1wb3J0IHNodWZmbGUgCgpmb28gPSBbXQpmb28uYXBwZW5kKFsxLCAyLCAzXSkKZm9vLmFwcGVuZChbNCwgNSwgNl0pCmZvby5hcHBlbmQoWzcsIDgsIDldKQoKc2h1ZmZsZShmb28pCmZvciBpaSwgc3VibGlzdCBpbiBlbnVtZXJhdGUoZm9vKTogc2h1ZmZsZShmb29baWldKQoKcHJpbnQoZm9vKQ==