numbers = [1, 25, 31, 42, 45, 52, 59, 63, 66, 70]
allnumbers = [1, 2, 9, 25, 26, 30, 31, 35, 42, 49, 45, 51, 52, 55, 59, 60, 63, 65, 66, 70]

smaller_list = set(numbers)
bigger_list  = set(allnumbers)

numbers_matched = len(bigger_list.intersection(smaller_list))
print(numbers_matched)