function sum(input) {
    let num1 = Number(input[0]);
    let num2 = Number(input[1]);

    let result = '';
    for (let number = num1; number <= num2; number++) {

        let leftSum = 0;
        let rightSum = 0;
        let middleNum = 0;

        let numString = number.toString();
        for (let i = 0; i <= numString.length - 1; i++) {
            let num = Number(numString[i]);

            switch (i) {
                case 0:
                    leftSum += num;
                    break;
                case 1:
                    leftSum += num;
                    break;
                case 2:
                    middleSum = num;
                    break;
                case 3:
                    rightSum += num;
                    break;
                case 4:
                    rightSum += num;
                    break;
            }
        }
        if (leftSum < rightSum) {
            leftSum += middleNum;
        }
        else if (rightSum < leftSum) {
            rightSum += middleNum;
        }
        if (leftSum === rightSum) {
            result += ` ${number}`;
        }

    }
    console.log(result);
}