H = int(input())
t = int(input())
O = int(input())
new_O = O % 25
count_t = t + O // 25
new_t = count_t % 4
count_H = H + t // 4
new_H = count_H % 10
count_T = H // 10
ans = new_O + new_t + new_H
print(ans)