#include<fstream.h>
#include<math.h>
long long c[13];
int main ()
{
	ifstream fcin("fact.in");
	ofstream fcout("fact.out");
	long long k,i,s=0;
	fcin>>k;
	while(k>0)
		{i=1;
		c[i]++;k--;
		if(k>0)while(c[i]%4==0){c[i+1]++;i++;k=k-i;}}
	for(i=1;i<=12;i++)
		s=s+c[i];
	if(k==0&&s>0)fcout<<s*5;
	else if(s==0)fcout<<1;
	else fcout<<-1;
	return 0;
}