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  <title>JS Bin</title>
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// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
var A = [3, 8, 9, 7, 6]
var K = 3
var i = 0
function solution(A, K) {
  for(i;i<K;i++){
  var tes = A.pop()
  A.unshift(tes)
  }
  return A
}
console.log(solution(A,K))
Output

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