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

void Reorder(int R[], int index, int val){
	int counter=0;
	while(index != 0 && R[index] > val){
		R[index+1] = R[index];
		R[index] = val;
		index--;
	}
}

void regular(int R[], int n){
	if(n > 0)
		R[0] = 1;
	int val=0;
	for(int i = 0, b = 2, c = i+1 ; i <= n && R[i]!=0; i++, b=2){
		while(b<=5){
			val = R[i]*b;

			if((val <= n) &&
			((b==5 && (val%2!=0 && val%3!=0)) || 
			(b==2 && val%3!=0) || 
			b==3)){
				R[c]=val;
				Reorder(R,c-1,val);
				c++;	
			}
		b += b-1;
		}
		if(R[i]*2 > n) break;
	}
}