function goldMine(input){


    for (let i = 0; i < input.length; i++) {
        let location=input[0];
        let expectedGold=input[1];
        let days=input[2];
        let averageGold= 0;
        for (let j = 0; j < days; j++) {
            let goldForDay = input[j];
            let allDaysGold =+ Number(goldForDay);
            let averageGold=Number(allDaysGold/days);



        }

        if (averageGold  >= expectedGold) {
            console.log(`Good job! Average gold per day: ${average.toFixed(2)}.`);
        }else{
            let youNeed=expectedGold-averageGold;
            console.log(`You need ${youNeed.toFixed(2)} gold.`);
        }

    }

}


goldMine([2,10,3,10,10,11,20,2,20,10])