<?php
$input_line = trim(fgets(STDIN));
for ($i = 0; $i < $input_line; $i++) {
  $s = trim(fgets(STDIN));
  $s = str_replace(array("\r\n","\r","\n"), '', $s);
  $s = explode(" ", $s);
  echo "hello = ".$s[0]." , world = ".$s[1]."\n";
}
?>