#include <stdio.h>
#include <cstdlib>
#include <iostream>
#define N 600010
using namespace std;

int p,i,x,y,aux;
int A[N],R[N];
int VIZ[N];
long long s=0;

FILE *f,*g;

int main()
{
    f=fopen("congr.in","r");
    g=fopen("congr.out","w");
    fscanf(f,"%d",&p);
    for (i=1;i<=2*p-1;++i)
    {
        fscanf(f,"%d",&A[i]);
        if (i<=p)
        {
            s+=A[i];
            R[i]=i;
        }
    }
    //generate_random()
    while (s%p!=0)
    {
        x=rand()%p+1;
        y=rand()%(p-1)+p+1;

        s=s+(A[R[y]]-A[R[x]]);

        aux=R[x];
        R[x]=R[y];
        R[y]=aux;

        aux=A[R[x]];
        A[R[x]]=A[R[y]];
        A[R[y]]=aux;


    }
    for (i=1;i<=p;++i)
        fprintf(g,"%d ",R[i]);

    fclose(f);
    fclose(g);
    return 0;
}