const cinema_auditorium = (spisok2D,ryad)=> {
  var soldTickets = 0;
  for (var i = 0; i < spisok2D[ryad].length; i++){
    if (spisok2D[ryad][i] !== 0){
      soldTickets++
    }
  }
  return soldTickets;
}

function sumNechet(a, b) {
  let sum = 0;
  
  function нечетное(x){
    return x % 2 !== 0;
  }
  for (let i = a; i <= b; i++){
    if(нечетное(i)){
      sum += i;
    }
  }
  return sum
            
}

const tab = (f, a, b, h) => {
  let sum = 0;
  for (let x = a; x <= b; x += h){
    sum += f(x);
  }
  return sum;
 
}