n=int(eval(input()))

even=[]

odd=[]

for i in range (1,n+1,1):

    if i%2==0:

        even.append(i)

    else:

        odd.append(i)

result=[(x,y) for x in even for y in odd]

print((len(result)))
k=int(eval(input()))

nomber_of_even_nombers=k//2

nomber_of_odd_nombers=k-nomber_of_even_nombers

nomber_of_wayes=nomber_of_even_nombers*nomber_of_odd_nombers

print(nomber_of_wayes)

n = int(eval(input()))
even = []
odd = []
for i in range(1, n + 1, 1):
    if i % 2 == 0:
        even.append(i)
    else:
        odd.append(i)
result = [(x, y) for x in even for y in odd]
print((len(result)))

k = int(eval(input()))
nomber_of_even_nombers = k // 2
nomber_of_odd_nombers = k - nomber_of_even_nombers
nomber_of_wayes = nomber_of_even_nombers * nomber_of_odd_nombers
print(nomber_of_wayes)

-n = int(eval(input())) -even = [] -odd = [] -for i in range(1, n + 1, 1): -    if i % 2 == 0: -        even.append(i) -    else: -        odd.append(i) -result = [(x, y) for x in even for y in odd] -print((len(result))) +k = int(eval(input())) +nomber_of_even_nombers = k // 2 +nomber_of_odd_nombers = k - nomber_of_even_nombers +nomber_of_wayes = nomber_of_even_nombers * nomber_of_odd_nombers +print(nomber_of_wayes)