import sys
import numpy as np

a_t=int(input())
b_t=int(input())
c_t=int(input())
d_t=int(input())
e_t=int(input())

a_d = a_t % 10
b_d = b_t % 10
c_d = c_t % 10 
d_d = d_t % 10
e_d = e_t % 10

dish_d = np.zeros(5)
dish_d[0] = a_d
dish_d[1] = b_d
dish_d[2] = c_d
dish_d[3] = d_d
dish_d[4] = e_d

if all(dish_d) == 0:
    time = (
        a_t // 10 + np.where(a_d==0, 0, 1) \
        + b_t  // 10 + np.where(b_d==0, 0, 1) \
        + c_t // 10 + np.where(c_d==0, 0, 1) \
        + d_t // 10 + np.where(d_d==0, 0, 1) \
        + e_t // 10 + + np.where(e_d==0, 0, 1)
       ) * 10
    
else:
    time = (
            a_t // 10 + np.where(a_d==0, 0, 1) \
            + b_t  // 10 + np.where(b_d==0, 0, 1) \
            + c_t // 10 + np.where(c_d==0, 0, 1) \
            + d_t // 10 + np.where(d_d==0, 0, 1) \
            + e_t // 10 + + np.where(e_d==0, 0, 1)
           ) * 10 - (10 - np.min(dish_d[np.nonzero(dish_d)]))
print(int(time))