#include <stdio.h>
#include <string.h>

typedef struct {
  int left_front;
  int right_front;

  int left_back;
  int right_back;
} stranka_t;

int main(int argc, char *argv[])
{
  int pages_num = -1;
  int max_pages = 0;
  stranka_t *pages = new stranka_t[100];
  int i;
  int page_tmp = 1;
  int pocet_uloh = 0;

  scanf("%d", &pocet_uloh);

  //for(int uloha=0;uloha<pocet_uloh;uloha++){
  while(true){
    memset(pages, 0, sizeof(stranka_t)*100);
    scanf("%d", &pages_num);
    if(pages_num==0) return 0;
    max_pages = pages_num;
    printf("%d, %d\n", max_pages, max_pages%4);
    int tmp=pages_num/4;
    if(max_pages%4 != 0) tmp++;
    pages_num = tmp;
    page_tmp = 1;
   
    printf("Printing order for %d pages:\n", max_pages);
    for(i=0;i<pages_num;i++){
      if(page_tmp <= max_pages) pages[i].right_front = page_tmp;
      page_tmp++;
      if(page_tmp <= max_pages) pages[i].left_back = page_tmp;
      page_tmp++;
    }//for pages_num

    for(i=pages_num-1;i>=0;i--){
      if(page_tmp <= max_pages) pages[i].right_back = page_tmp;
      page_tmp++;
      if(page_tmp <= max_pages) pages[i].left_front = page_tmp;
      page_tmp++;
    }//for pages_num

    for(i=0;i<pages_num;i++){
      if(pages[i].left_front != 0 || pages[i].right_front != 0){
	printf("Sheet %d, front: ", i+1);
	if(pages[i].left_front == 0) printf("Blank");
	else printf("%d", pages[i].left_front);

	if(pages[i].right_front == 0) printf(", Blank");
	else printf(", %d", pages[i].right_front);
	printf("\n");
      }
      //printf("page_tmp=%d\n", page_tmp);
      if(pages[i].left_back != 0 || pages[i].right_back != 0){

	/////////////////////////////////////////////
	printf("Sheet %d, back: ", i+1);
	if(pages[i].left_back == 0) printf("Blank");
	else printf("%d", pages[i].left_back);

	if(pages[i].right_back == 0) printf(", Blank");
	else printf(", %d", pages[i].right_back);
	printf("\n");
      }
    }//for
    printf("\n");
  }//for uloha
  return 0;
}