#include<stdio.h>

int main () {

    int n, i, kurac=0, j, temp;
    scanf ("%d", &n);
    int a[n];

    for (i=0; i<n; i++) {
        scanf ("%d", &a[i]);
        if (a[i]%2!=0 && i%2!=0) kurac++;}

    printf ("%d\n", kurac);

    for (i=n-1; i>=0; i--) printf ("%d ", a[i]);
    printf ("\n");

    for (i=0; i<n-1; i++) {
        for (j=i+1; j<n; j++) {
            if (a[i]>a[j]) {temp=a[i];
                           a[i]=a[j];
                           a[j]=temp;}
                           }}

    for (i=0; i<n; i++) printf ("%d ", a[i]);


    system ("pause");
    return 0;}