var count = 0;
function cc(card) {
// Only change code below this line
  switch(card){
      case 2:
      case 3:
      case 4:
      case 5:
      case 6:
      count++;
      break;
      case 10:
      case 'J':
      case 'Q':
      case 'K':
      case 'A':
      count--;
      break;
  }
if(count>0){
  return count + " " + "Bet";
}else{
  return count + " " + "Hold";
}
    
// Only change code above this line
}
// Add/remove calls to test your function.
// 提示: Only the last will display
cc(2); cc(3); cc(7); cc('K'); cc('A');