#include<stdio.h>
#include<stdlib.h>
#include<time.h>
int a[600010],ind[600010];
int main ()
{
    freopen("congr.in","r",stdin);
    FILE* f=fopen("congr.out","w");
    int x,y,i,p;
    scanf("%d",&p);
	for(i=1;i<2*p;i++)
	{
		scanf("%d",&a[i]);
		ind[i]=i;
	}
	long long sum=0;
	for(i=1;i<=p;i++)
		sum+=a[i];
	srand(time(NULL));
	while(sum%p!=0)
	{
		x=1+rand()%p;
		y=p+1+rand()%(p-1);
		sum-=a[ind[x]];
		sum+=a[ind[y]];
		ind[x]^=ind[y]^=ind[x]^=ind[y];
	}
	for(i=1;i<=p;i++,fprintf(f," "))
		fprintf(f,"%d",ind[i]);
    fprintf(f,"\n");
	return 0;
}