#include <iostream>
using namespace std;

int main()
{
	bool composite = false;
	for( int i = 1; i < 100; i++)
	{
		for( int j = 2; j < i; j++)
		{
			if( i % j == 0 )
			{
				composite = true;
			}
		}
		if(! composite )
			cout << i << " ";
		composite = false;
	}
	cout << endl;
	return 0;
}