/*-
 Author: Brian Tiffin
 Dedicated to the public domain

 Date started: November, 2016
 Modified: 2016-12-14/11:55-0500

 Tectonics: gdc -o tightloop-d tightloop-d.d
+*/
/* Sum of values from 0 to 16777216 */
module tightloop;
import std.stdio;

void
main(string[] args)
{
    long total = 0;
    for (int n = 0; n <= 1<<24; n++) total += n;
    writeln(total);
}