<?php


$first = readline();
$second = readline();
$Magic = readline();
$combination = 0;

for ($i = $first; $i <= $second; $i++) {
    for ($j = $first; $j <= $second; $j++) {
        $combination++;
       if ($i + $j == $Magic) {
            echo $combination . "\n";
   echo $i . "+" . $j . "=" . $Magic;}
        }
    }