#include <stdio.h>
long p, t;
int main(void)
{
freopen("fact.in", "r", stdin);
freopen("fact.out", "w", stdout);
scanf("%ld", &p);
if (p==0)
	printf("1");
else
{
t=p+1;
p=p-p/6-p/31-p/156-p/781-p/3906-p/19531-p/97656-p/488281-p/2441406-p/12207031-p/61035156-p/305175781;
t=t-t/6-t/31-t/156-t/781-t/3906-t/19531-t/97656-t/488281-t/2441406-t/12207031-t/61035156-t/305175781;
if (t==p)
	printf("-1");
else
	printf("%ld", p*5);
}
fcloseall();
return 0;
}