<?php 
    $user_input = ""; 
// Reading the input number from the user
$N = intval(trim(fgets(STDIN)));

// Check if the number is positive
if ($N > 0) {
    // Print the first 3 multiples of the given number N
    echo ($N * 1) . " " . ($N * 2) . " " . ($N * 3);
} else {
    echo "Please provide a positive integer.";
}
?>
