Clever Lily

function squareArea(input){
  let age = Number(input[0])
  let priceWash = Number(input[1])
  let priceToy = Number(input[2])
  let counterToy = 0
  let sumMoney = 0.00

  for(let i = 1; i <= age; i++){
    if(i % 2 != 0){
      counterToy += 1
    }else{
      sumMoney += (i/2)*10
      sumMoney -= 1
    }
  }

  let totalMoney = counterToy * priceToy + sumMoney
  let diff = Math.abs(totalMoney - priceWash)

  if(totalMoney >= priceWash){
    console.log(`Yes! ${diff.toFixed(2)}`)
  }else {
    console.log(`Yes! ${diff.toFixed(2)}`)
  }
}