function firsDemoProject(input) {


  let count = Number(input[0]);

  let delivery = input[2];

  let sum = 0;





if (count >= 10) {


            // I

  if (input[1] == '90X130') {

    count = input[0] * 110;

    if (input[0] >= 10 && input[0] <= 30) {

      sum = count;

    } else if (input[0] > 30 && input[0] <= 60) {

        sum = count - (count * (5 / 100));

    } else if (input[0] > 60) {

        sum = count - (count * (8 / 100));

    }


            // II

} else if (input[1] == '100X150') {

  count = input[0] * 140;

  if (input[0] >= 10 && input[0] <= 40) {

    sum = count;

  } else if (input[0] > 40 && input[0] <= 80) {

    sum = count - (count * (6 / 100));

   } else if (input[0] > 80) {

      sum = count - (count * (10 / 100));

   }

}

            // III

else if (input[1] == '130X180') {

  count = input[0] * 190;

  if (input[0] >= 10 && input[0] <= 20) {

    sum = count;


  } else if (input[0] > 20 && input[0] <= 50) {

    sum = count - (count * (7 / 100));
      console.log(sum);

   } else if (input[0] > 50) {

    sum = count - (count * (12 / 100));

   }
  }



else if (input[1] == '200X300') {

  count = input[0] * 250;

  if (input[0] >= 10 && input[0] <= 25) {

    sum = count;

 } else if (input[0] > 25 && input[0] <= 50) {

    sum = count - (count * (9 / 100));

   } else if (input[0] > 50) {

    sum = count - (count * (14 / 100));

   }

  }

}



              //

if (input[0] >= 10 && input[0] <= 99) {

if (delivery == 'Without delivery') {

  console.log(`${sum.toFixed(2)} BGN`);

} else if (delivery == 'With delivery') {

  sum = sum + 60;

  console.log(`${sum.toFixed(2)} BGN`);

}
} else if (input[0] >= 10 && input[0] > 99) {


  if (delivery == 'Without delivery') {

    let sum2 = sum - (sum * (4 / 100));

    console.log(`${sum2.toFixed(2)} BGN`);

  } else if (delivery == 'With delivery') {

    sum = sum + 60;
    let sum2 = sum - (sum * (4 / 100));

    console.log(`${sum2.toFixed(2)} BGN`);

  }


} else {
  console.log('Invalid order');
}


}