N = input()
n = int(N)
even =int(n//2)
odd = int(n-even)
print(odd/n) N = input() N input() input n = int(N) n int(N) int N even =int(n//2) even int(n//2) int n//2 n 2 odd = int(n-even) odd int(n-even) int n-even n even print(odd/n) print odd/n odd n n = int(N) int(N) n N = input() input() N odd = int(n-even) int(n-even) odd even =int(n//2) int(n//2) even
N = input()
n = int(N)
even =int(n//2)
odd = int(n-even)
print(odd/n)
