import numpy as np
t = [int(input()) for i in range(5)] 
a = np.zeros(5)

for i in range(5):
  a[i] = ( t[i] + 9 ) // 10 * 10 - t[i]

b = 0  
for j in range(1,5):
  if a[0] > a[j]:
    b = j

c = np.zeros(5)
for i in range(5):
  c[i] = ( t[i] + 9 ) // 10 * 10
    
ans = 0     
ans = np.sum(c) + t[b] - c[b]
print(ans)