A = int(input())
B = int(input())
C = int(input())
D = int(input())
E = int(input())

L = [A, B, C, D, E]
S = []
for l in L:
    if l % 10 != 0:
        S.append(l % 10)
min_s = min(S)

s = 0
flag = True
for l in L:
    if flag and min_s == l % 10:
        s += l
        flag = False
    elif 0 == l % 10:
        s += l
    else:
        s += 10 * (l // 10) + 10
print(s)