#include<iostream>
#include<cmath>
#include<fstream>

using namespace std;

ifstream fin("fact.in");
ofstream fout("fact.out");

int main () {
    int p=1,c,nr=1,n;
    fin >> p;

    if(p==0)fout<<"1";

    n=p*5;

	           while(p){c=p%10;
	                               p=p/10;
	                                if(c==0)nr++;}

                if(nr==p)cout<<n<<" ";
                    else fout<<"-1";

    fin.close();
	fout.close();

	return 0;

}