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#include <fstream>
#include <iostream>
using namespace std;
ifstream fin("fact.in");
ofstream fout("fact.out");
int main()
{
int n,p,k,r;
fin>>p;
if(p==0)
{
fout<<1; cout<<1; return 0;
}
if(p%6==0)
{
k=p/6; fout<<k*5*5; cout<<k*5*5; return 0;
}
if((p+1)%6==0)
{
k=(p+1)/6; fout<<k*5*5; cout<<k*5*5; return 0;
}
r=p%6; k=p/6; fout<<k*5*5+5*r; cout<<k*5*5+5*r; return 0;
}