import numpy as np 
x =[]
for i in range(5):
    x.append(int(input()))
x = np.array(x)
y = x.copy()
z = x%10
y[y%10 !=0] = y[y%10 !=0] + 10 - y[y%10 !=0]%10
minz = min(z[z%10!=0])

print(sum(y)-10+minz)