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// function draw(i) {
//   var selection = ['\u2571', '\u2572'];
//   if(i > 10) {
//     process.stdout.write('\n');
//     i = 0;
//     draw(i);
//   }else{
//     process.stdout.write(selection[Math.round(Math.random())]);
//     i++;
//     draw(i);
//   }
// }
// var i = 0;
// draw(i);

function draw(c) {
  var selection = ['\u2571', '\u2572'];
  setTimeout(function(c) {
    if(c < 10) {
      process.stdout.write(selection[Math.round(Math.random())]);
    }else{
      process.stdout.write('\n');
    }
    draw(c);
    c++;
  }, 0, c);
}
draw(0);