const solve = function(x, y) {
  let distanceFromCenter = Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));
  if (typeof x !== 'number' || typeof y !== 'number'){
    return null;
  } else if (distanceFromCenter > 10) {
    return 0;
  } else if (distanceFromCenter > 5) {
    return 1;
  } else if (distanceFromCenter > 1) {
    return 5;
  } else {
    return 10;
  }
}


export { solve };