/*
 * 1000012826_????_05.cpp
 *
 *  Created on: 2010-11-16
 *      Author: Administrator
 */

int main(){
	int n,i,sum=0;
	int c[100],p[100];
	cin>>n;
	for(i=0;i<n;i++)
		c[i]=i+1;
	for(i=0;i<n;i++)
	{if((c[i]%7==0)||((c[i]-7)%10==0)||(c[i]>69&&c[i]<80))//?????7??
		c[i]=0;}//??7??????0
	for(i=0;i<n;i++)
		p[i]=c[i]*c[i];
	for(i=0;i<n;i++)
		sum=sum+p[i];
	cout<<sum<<endl;
}