SOURCE

var e=271733878
var t=3705142957
var n=4023233417
var r=2562383102
var o=795631988
var a=12
var i=-389564586
var s = e +  ((t & n | ~t & r)) + o + i
console.log(['s',s]);
console.log(['(s << a | s >>> 32 - a)',(s << a | s >>> 32 - a)]);
console.log(['(s << a)',(s << a)]);
console.log(['(s >>> 32 - a)',(s >>> 32 - a)]);
console.log(['(32 - a)',(32 - a)]);
console.log(['(s >>> 20)',(s >>> 20)]);
console.log(['(1099018240 | 3925)',(1099018240 | 3925)]);
console.log(['t',t]);
console.log(['(1099018240 | 3925) + t',(1099018240 | 3925) + t]);
console.log((s << a | s >>> 32 - a) + t);