# your code goes here
def F(arr: list) -> list:
return [x for x in arr if x % 2 == 0]
arr = [1, 2, 3, 4]
print(F(arr))
IyB5b3VyIGNvZGUgZ29lcyBoZXJlCmRlZiBGKGFycjogbGlzdCkgLT4gbGlzdDoKICAgIHJldHVybiBbeCBmb3IgeCBpbiBhcnIgaWYgeCAlIDIgPT0gMF0KCgphcnIgPSBbMSwgMiwgMywgNF0KcHJpbnQoRihhcnIpKQ==