include[HTML_REMOVED]
int main(){
int n;
while(scanf(“%d”,&n),n){
for(int i=1;i<=n;i){
for(int j=i;j>1;j–){
printf(“%d “,j);
}
for(int k=1;k<=n-i+1;k){
printf(“%d “,k);
}
printf(“\n”);
}
printf(“\n”);
}
return 0;
}