void main()
{
	long n,a=6,b=3,i,j,k,l,c,d;
	scanf("%ld",&n);
	while(a<=n)
	{
		i=3;printf("%ld=",a);
		while(i<=a/2)
		{j=3;d=3;k=0;l=0;
			while(j<=sqrt(i))
			{if((i%j)==0)k++;j=j+2;
			}if(k==0)
			{c=a-i;
			while(d<=sqrt(c))
			{if((c%d)==0)l++;d=d+2;
			}if(l==0){printf("%ld+%ld\n",i,c);break;}
			}
			i=i+2;
		}
		a=a+2;
	}
}
