Sum Numbers

function sumNumbers(input) {
    let number = Number(input[0]);
    let index = 1;
    let currentNumber = Number(input[index]);
    index++;

    let sum = 0;
    while (sum < number) {
        sum += currentNumber;
        currentNumber = Number(input[index]);
        index++;
    }
    console.log(`${sum}`);
}