<?php
// Read input values
list($N, $A, $B) = explode(" ", trim(fgets(STDIN)));
 
// Iterate through numbers and calculate the sum
$totalSum = 0;
for ($i = 1; $i <= $N; $i++) {
    $num = $i;
    $sumOfDigits = 0;
 
    // Calculate sum of digits without using a separate function
    while ($num > 0) {
        $sumOfDigits += $num % 10;
        $num = (int)($num / 10);
    }
 
    if ($sumOfDigits >= $A && $sumOfDigits <= $B) {
        $totalSum += $i;
    }
}
 
// Output the result
echo $totalSum;
?>
 

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