void main()
{
	int ch1[350],n,i,ch2[350],j,k=1,l,r;
	double max,sum=0;
	scanf("%d\n",&n);
	for(i=0;i<=n-2;i++)
	{	scanf("%d ",&ch1[i]);
	sum=sum+ch1[i];
	}
	scanf("%d",&ch1[n-1]);
	sum=sum+ch1[n-1];//again,Why?
	float average=(float)(sum/n);//?warning???????????????????????????????average=6?
//	????6.6666?????????1??12?warning????,?average???float????????????????.
//  ?????????????double???double??????????????????????????????
	max=fabs(ch1[0]-average);
    ch2[0]=0;
	for(j=0;j<=n-1;j++)
	{
		if(fabs(ch1[j]-average)>max)
		{	max=fabs(ch1[j]-average);
		   ch2[0]=j;
		}
	}
	for(r=0;r<=n-1;r++)
	{	if(max==fabs(ch1[r]-average)&&r!=ch2[0])
	{ch2[k]=r;
		k++;//"sth++"?????????????????????????
	}
	}//?????????????
	for(l=0;l<k-1;l++)
		printf("%d,",ch1[ch2[l]]);
	printf("%d",ch1[ch2[k-1]]);//???????k=3,?ch2[3]=-858993460,??????ch1[-858993460],??
}
//?????????????????????????

		    
        





	    

	