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<?php
function calculate_factorial(int $what){
$fact = 1;
foreach (range(1, $what) as $i) {
$fact *= $i;
}
return $fact;
}
function get_factorions_sum(int $what){
$my_sum = 0;
foreach (str_split($what) as $i) {
$my_sum += calculate_factorial($i);
}
return $my_sum;
}
function is_equal(int $what){
return $what == get_factorions_sum($what);
}
is_equal(145) == 1 or throw new Exception("Test 1 failed");
is_equal(123) == 0 or throw new Exception("Test 2 failed");
?>
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