#include <stdio.h>


int findoddeven(int *odd,int *even,int *a,int n){

int i,count=0,b=0,c=0;
for(i=0;i<n;i++)
	{
       if(a[i]%2==0)
		{
          even[b++]=a[i];
          count++;
		}
		else
		  odd[c++]=a[i];
	}
return count;
}

main ()
{
	int n,i,z;
    int odd[1000] ;
    int  even[1000] ;
    int  a[2000];

	scanf("%d",&n);


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

 	z = findoddeven(odd,even,a,n);
 	printf("odd = %d is ",n-z);
 	for(i=0;i<n-z;i++){
 	printf("%d ",odd[i]);
    }
    printf("\neven = %d is ",z);
    for(i=0;i<z;i++){
 	printf("%d ",even[i]);
    }


return 0;

}