;;- ;REBOL [ ; Author: "Brian Tiffin" ; Date: 2016/11/28 ; License: "Dedicated to the public domain" ; Modified: 2016-12-14/11:52-0500 ;] ; Tectonics: r3 tightloop-rebol.r3 ;;+ ; Sum of values from 0 to 16777216 REBOL [] total: 0 for n 0 to integer! 2 ** 24 1 [total: total + n] print total