function solve(input) {
    let sum = Number(input.shift())
    let gender = input.shift()
    let age = Number(input.shift())
    let sport = input.shift()
    let price = 0;

    if (gender == 'm') {
        switch (sport) {
            case 'Gym':
                price = 42;
                break;
            case 'Boxing':
                price = 41;
                break;
            case 'Yoga':
                price = 45;
                break;
            case 'Zumba':
                price = 34;
                break;
            case 'Dances':
                price = 51;
                break;
            case 'Pilates':
                price = 39;
                break;
        }

        if (age <= 19) {
            price -= (price*0.2)
        }

    } else if (gender == 'f') {
        switch (sport) {
            case 'Gym':
                price = 35;
                break;
            case 'Boxing':
                price = 37;
                break;
            case 'Yoga':
                price = 42;
                break;
            case 'Zumba':
                price = 31;
                break;
            case 'Dances':
                price = 53;
                break;
            case 'Pilates':
                price = 37;
                break;
        }

        if (age <= 19) {
            price -= (price*0.2)
        }
    }


    if (sum >= price) {
        console.log(`You purchased a 1 month pass for ${sport}.`)
    } else {
        let money = price - sum
        console.log(`You don't have enough money! You need $${money.toFixed(2)} more.`)
    }
}

solve([
    10,
    'm',
    50,
    'Pilates'
])