import math

menu = [int(input()) for i in range(5)]
last_menu_index = min([[i, x % 10 ] for i, x in enumerate(menu) if x % 10 != 0 ], key=lambda x: x[1])[0]
print(sum([math.ceil(x / 10) * 10 if last_menu_index != i else menu[last_menu_index] for i, x in enumerate(menu)]))
