A_list = []
for i in range(5):
    A_list.append(input())
one_list = []
one_list.append(int(A_list[0][-1]))
one_list.append(int(A_list[1][-1]))
one_list.append(int(A_list[2][-1]))
one_list.append(int(A_list[3][-1]))
one_list.append(int(A_list[4][-1]))
min_num = max(one_list)
for i in range(len(one_list)):
    if one_list[i] != 0 and min_num >= one_list[i]:
        min_num = one_list[i]
        min_one_list_index = i
A_list_min = A_list[min_one_list_index]
del A_list[min_one_list_index]


def ceil(src, range):
    if src % 10 == 0:
        return src
    else:
        return ((int)(src / range) + 1 ) * range


for i in range(len(A_list)):
    A_list[i] = ceil(int(A_list[i]), 10)
print(sum(A_list)+int(A_list_min))