def is_even(num:int) -> bool:
if x < 0:
x = x * (-1)
if x == 0:
return True
elif x == 1:
return False
elif x == 2:
return True
elif x == 3:
return False
elif x == 4:
return True
elif x == 5:
return False
elif x == 6:
return True
elif x == 7:
return False
# ...