Only switch

function fishingBoat0(input) {

  let [budget, season, fishermenCount, price, diff] = [+input[0], input[1], +input[2], 0, 0]

  switch (season) {
    case 'Spring':
      price = 3000
      break
    case 'Summer':
    case 'Autumn':
      price = 4200
      break
    case 'Winter':
      price = 2600
  }

  switch (true) {
    case fishermenCount <= 6:
      price = price - price * 0.1
      break
    case fishermenCount >= 7 && fishermenCount <= 11:
      price = price - price * 0.15
      break
    case fishermenCount >= 12:
      price = price - price * 0.25
  }

  switch (true) {
    case (fishermenCount % 2 == 0 && season != 'Autumn'):
      price = price - price * 0.05
  }

  diff = (Math.abs(budget - price)).toFixed(2)

  switch (true) {
    case (budget >= price):
      result = `Yes! You have ${diff} leva left.`
      break
    default:
      result = `Not enough money! You need ${diff} leva.`
  }

  console.log(result)
}