#include<stdio.h>
#include<stdlib.h>

typedef struct N{
    int i;
    struct N* next;
}List;

int main(void){
    List *L,*H,*P,*Q;
    L=(List *)malloc(sizeof(List));
    L->i=1;
    L->next=NULL;
    H=L;
    P=L;
    int j;
    int n=0;
    int k=0;
    for(j=2;j<=30;j++){
      Q=(List *)malloc(sizeof(List));        
      Q->i=j;
      Q->next=NULL;
      P->next=Q;
          P=Q;
    }
    
    P->next=H;
    k=1;
    while(n<15){
      H=H->next;
      k++;
      if(k==8){
        printf(" %d ",H->next->i);
            H->next=H->next->next;
        n++;
            k=0;
      }
    }
    return 0;
}