num_100 = int(input())
num_25 = int(input())
num_1 = int(input())
# num_1 = int(input())
# num_25 = int(input())
# num_100 = int(input())

num_25 += num_1//25
num_1 = num_1 - (num_1//25)*25

num_100 += num_25//4
num_25 = num_25 - (num_25//4)*4

num_100 = num_100 - (num_100//10)*10

print(num_1+num_25+num_100)