N = int(input())
result = [n for n in range(N) if n % 2 == 0]
print(len(result) / N) N = int(input()) N int(input()) int input() input n for n in range(N) if n % 2 == 0 for n in range(N) if n % 2 == 0 n range(N) range N n % 2 == 0 n % 2 n 2 0 if n % 2 == 0 n result = [n for n in range(N) if n % 2 == 0] result [n for n in range(N) if n % 2 == 0] print(len(result) / N) print len(result) / N len(result) len result N result = [n for n in range(N) if n % 2 == 0] [n for n in range(N) if n % 2 == 0] result N = int(input()) int(input()) N
N = int(input())
result = [n for n in range(N) if n % 2 == 0]
print(len(result) / N)