input: Write a function to create a lambda expression in Python to filter a list of integers greater than 50. The function should take a list of integers as input and return a filtered list with only the integers greater than 50.
  assert [52, 89, 99] == list1 = [45, 12, 52, 89, 33, 99]; list(filter(lambda x: x > 50, list1))
  assert [] == list1 = [10, 20, 30, 40]; list(filter(lambda x: x > 50, list1))
  assert [51, 52, 53] == list1 = [10, 51, 52, 30, 53]; list(filter(lambda x: x > 50, list1))
  assert [55] == list1 = [55]; list(filter(lambda x: x > 50, list1))
  assert [] == list1 = []; list(filter(lambda x: x > 50, list1))
output: return list(filter(lambda x: x > 50, lst))