n = int(input().strip())
s = [1, 2]
for i in range(2, n):
    if i % 2 == 0:
        s.append(s[i - 2] + 2)
    else:
        s.append(s[i - 2] * 2)
print(' '.join(map(str, s[:n])))

a, b = map(int, input().split())
print((10 * a + b) - (10 * b + a))

N = int(input().strip())
S = input().strip()

consonants = [c for c in S if c.lower() not in "aeiou" and c.isalpha()]

if len(consonants) >= 3:
    print(consonants[-3])
else:
    print(0)