gistfile1.txt

function main() {

// provided by hackerrank.
    var n_temp = readLine().split(' ');
    var n = parseInt(n_temp[0]);
    var k = parseInt(n_temp[1]);
    a = readLine().split(' ');
    a = a.map(Number);
    
// we loop through the array of numbers but rather than doing it relative to the length 
// we set it to run while i is less than the number of left rotations we are being 
// asked to do.
    for (let i = 0; i < k; i++) {
    
 // set a variable equal to the the first element in the array which we pull out by calling .shift().
        first = a.shift()
        
 // push that variable (which was the first element in the array) back onto the array where
 // it is now that last element in the array.
        a.push(first)
    }
    
// join the array then log it, super straight forward.
    console.log(a.join(' '))
}