function scanAndPay(item, amount)
{
console.log("Welcome to scan and pay service");
console.log(`Payment of ${amount} done for purchasing ${item}.`);
}

function orderFood(item)
{
switch(item)
{
case "Burger":
scanAndPay(item,50);
break;
case "Cold Drink":
scanAndPay(item,30);
break;
case "Pizza":
scanAndPay(item,100);
break;
}
}
orderFood("Pizza");