Lesson2 - divideArray() исправить

function divideArray(array) {
    var finalArray = [];
    var firstSide = 0;
    var secondSide = 0;
    var half = array.length / 2;
    var central = array[Math.floor(half)] / 2;

    if (array.length % 2 == 0) {
        for(var f=0; f < half; f++) {
            firstSide += array[f]
        }
        for(var s=f+1; s < array.length; s++ ){
            secondSide += array[s];
        }
    } else {
        for (var f = 0; f < Math.floor(half); f++) {
            firstSide += array[f]
        }
        for (var s = Math.ceil(half); s < array.length; s++) {
            secondSide += array[s]
        }
        firstSide += central;
        secondSide += central;
    }
    finalArray.push(firstSide, secondSide);
    return finalArray;
}