include

include

include

include

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

int size = (n*2)-1;
int hub =size;

for (int row=1 ;row <=n;row++ ){ hub--; for (int col=1;col<=size;col++){

    printf("%d ",n);

    if (row>col && row>1 ){
        if (row>=col){n--;}

    }   
    else if (col>hub  &&row >1&& size !=col  ){n++;}

}

    printf("\n")  ;  
 }
 int a =n;
 int hub_add=n+1;
 int hub_sub=n-2;
 for (int row=1;row <n;row++){

     a=n;
     for (int col=1;col<=size;col++){
     printf("%d ",a);
     if(row!=n-1){
     if (hub_sub>=col  ){
         a--;
     }
      if (hub_add<=col ){
         a++;

     }
     }
     }
        hub_add++;
        hub_sub--;
              printf("\n");

 }

}