Hacker rank: Multi line input

Reading input from hacker rank

JavaScript

function processData(input) {
    //Enter your code here
    lines = input.split("\n");
    
    var totalItems = lines[0].split(" ").map(Number)[0],
    		allergyItem = lines[0].split(" ").map(Number)[1],
        itemCostArray =  lines[1].split(" ").map(Number),
        charged = parseInt(lines[2]);
        
        console.log(charged)
        print(charged)
}

processData("4 1\n3 10 2 9\n 7")


/*
Input Format

The first line contains two space-separated integers denoting the respective values of  (the number of items ordered) and  (the -based index of the item that Anna did not eat). 
The second line contains  space-separated integers where each integer  denotes the cost, , of item  (where ). 
The third line contains an integer, , denoting the amount of money that Brian charged Anna for her share of the bill.
*/