public class Program {
public static void Main() {
int num = System.Convert.ToInt32(System.Console.ReadLine());
int odd = 0, even = 0;
for (int i = 0; i <= num; i++) {
if (i != 0) {
if (i % 2 == 0)
even++;
else
odd++;
}
}
System.Console.WriteLine(odd + " " + even);
}
}

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