var numArray = [1,1,1,-1,-1,1111,-1,-1,-1,-1,-1];
var outputArray = [0,0,0,0];
for (var i = 0; i < numArray.length; i++){
if (numArray[i] > 0){
outputArray[0] += numArray[i];
} else {
outputArray[1] -= numArray[i];
}
}
outputArray[2] = outputArray[0] - outputArray[1];
outputArray[3] = outputArray[1] - outputArray[0];
console.log(outputArray); // [3,-2,4,-2]