# A = int(input())
# B = int(input())
# C = int(input())
# D = int(input())
# E = int(input())
M = [int(input()) for _ in range(5)]
m = []
T = 0
for i in range(5):
    if M[i] % 10 == 0:
        T += M[i]
    else:
        T += M[i]
        T += 10 - M[i] % 10
        m.append(M[i] % 10)
print(T - (10 - min(m)))
