#include <stdio.h>
#define MAX 200000

void maxHeapify(int);
int H,A[MAX];


int main(){
  int i;
  scanf("%d",&H);

  for(i=1;i<=H;i++)
    scanf("%d",&A[i]);

  for(i=H/2;i>=1;i--)
    maxHeapify(i);
  
  for(i=1;i<=H;i++){
    printf("%d\n",i);
    printf(" %d",A[i]);
  }
  printf("\n");
  return 0;
}

void maxHeapify(int i){
  int largest,x,l=2*i;
  int r=2*i+1;

  if(l<=H && A[l]>A[i]){
    largest=l;
  }else largest=i;
  
  if(r<=H && A[r]>A[largest]){
    largest=r;
  }
  if(largest!=i){
    x=largest;
    largest=i;
    i=x;
    maxHeapify(largest);
  }
}
