Paweł Żurowski pzurowski

## validator-of-polish-id-document.05.js
const weights = [7, 3, 1, 9, 7, 3, 1, 7, 3];

function isDocumentSerialNumberValid(input) {
    return !weights
        .map((weight, i) => weight * parseInt(input[i], 36))
        .reduce((a, b) => (a + b) % 10, 0);
}
	const weights = [7, 3, 1, 9, 7, 3, 1, 7, 3];

	function isDocumentSerialNumberValid(input) {
	return !weights
	.map((weight, i) => weight * parseInt(input[i], 36))
	.reduce((a, b) => (a + b) % 10, 0);
	}