#include<string>
#include<iostream>
#include<cstdio>
#include<vector>
#include<algorithm>
#include<functional>
using namespace std;
typedef long long int llint;
#define  pub push_back

//A
//BABA
int main(void){
	llint n,ansa,ansb,ansc,ok=0;
	cin>>n;
	ansa=(n/1000000)*(n/1000000)*3;
	ansb=(n/1000000)*(n%1000000)*6;
	ansc=(n%1000000)*(n%1000000)*3;
	ansb+=ansc/1000000;
	ansc%=1000000;
	ansa+=ansb/1000000;
	ansb%=1000000;
	if(ansa>0){ printf("%lld",ansa);ok=1; }
	if(ok==1){ printf("%06lld",ansb);ok=1; }
	else if(ansb>0){ printf("%lld",ansb);ok=1; }
	if(ok==1){printf("%06lld",ansc);ok=1;}
	else{ printf("%lld",ansc);}
	printf("\n");
	return 0;
}