#include<stdio.h>

void main(){
	int n,i,g,s,b,c;
	scanf("%d",&n);
	
	c=0;
	for(i=1;i<=n;i++){
		g=i%10;
		s=i/10%10;
		b=i/100;
		if(i%7!=0&&(g!=7&&s!=7&&b!=7)){
			c=c+i;
		}
	} 
		printf("%d",c);
}
/**************************************************************
	Problem: 1393
	User: admin
	Language: C
	Result: Accepted
	Time:24 ms
	Memory:1144 kb
****************************************************************/