A = [0] * 5
A[0] = int(input())
A[1] = int(input())
A[2] = int(input())
A[3] = int(input())
A[4] = int(input())
ans = 0
min1 = 10
for i in range(0,5):
    m = A[i] % 10
    if ((m > 0) and (m < min1)):
        min1 = m        
    ans += (A[i] // 10) * 10
print(ans - (10 - min1))