#include <stdio.h>
#include <math.h>

int main(void)
{
    long n,i;
    scanf("%ld",&n);
    if(n-3>2){
        for(i=2;i<60;++i)if((long)pow(2,i)==n-3)break;
        if(i==60)printf("3 %ld",n-3);
        else printf("5 %ld",n-5);
    }
    else puts("-1");
    return 0;
}