#333
a = int(input())
b = int(input())
x = a
s = ''
while x <= b:
    if x % 2 == 0:
        s = s + str(x) + ' '
    x += 1
print(s)

#315
x = int(input())
y = 1
s = 0
while y <= x:
    s = s + y ** 2
    y += 1
print(s)

#3059
n = int(input())
x = 1
while x <= n:
    print(x)
    x = x * 2