function solve (num) {
    let numString = num.toString();
    let sumEven = 0;
    let sumOdd = 0;

    for (let char of numString) {
        if (Number(char) % 2 == 0) {
            sumEven += Number(char);
        } else {
            sumOdd += Number(char);
        }
    }

    return `Odd sum = ${sumOdd}, Even sum = ${sumEven}`
}