#include<iostream.h>
#include<math.h>

void main()
{
	int i,j,k,n(0),min,max;
	cin>>a>>b;
	if(a>b) min=b;max=a;
	else min=a;max=b;	
	for(i=MIN;i<=MAX;i+=2)
	{
		k=(int)sqrt(double(i));
		for(j=2;j<=k;j++)
			if(i%j==0)
				break;
			if(j>=k+1)
			{
				if(n%6==0)
					cout<<endl;
				n++;
				cout<<" "<<i;
			}
	}
	cout<<endl;
}