#coding:utf-8

L_coin = input()#100yen 
M_coin = input()#25yen 
N_coin = input()#1yen 

c1 = N_coin % 25#1yen 
c1_25 = N_coin // 25#1->25yen 

c25 = (M_coin + c1_25) % 4#25yen 
c25_100 = (M_coin + c1_25) // 4#25->100yen 

c100 = (L_coin + c25_100) % 10#100yen 

print c1 + c25 + c100