<?php
$start = microtime(TRUE);

define("EXP_MAX", 100000000);
define("RESULT_DIV_VALUE", 1000003);

list($x, $n) = explode(" ",trim(fgets(STDIN)));
$exp_member_array = explode(" ",trim(fgets(STDIN)));

$exp_sum_value = array();
$exp_sum_value[1] = intval($x);
$gmp_pow_temp = gmp_init($exp_sum_value[1]);
for ( $i=2; $i<=EXP_MAX; $i<<=1 ) {
	$gmp_pow_temp = gmp_pow($gmp_pow_temp, 2);
	$exp_sum_value[$i] = gmp_intval(gmp_div_r($gmp_pow_temp, gmp_init(RESULT_DIV_VALUE)));
}
$exp_sum_value_max_index = ($i>>1);
$gmp_sum = 0;
foreach ( $exp_member_array as $index => $exp ) {
	$i = $exp_sum_value_max_index;
	$gmp_sum_temp = gmp_init(1);
	while ( $exp > 0 ) {
		while ( $exp >= $i ) {
			$exp -= $i;
			$gmp_sum_temp = gmp_mul($gmp_sum_temp, $exp_sum_value[$i]);
		}
		$i >>= 1;
	}
	$gmp_sum_temp = gmp_div_r($gmp_sum_temp, gmp_init(RESULT_DIV_VALUE));
	$gmp_sum += gmp_intval($gmp_sum_temp);
	$gmp_sum %= RESULT_DIV_VALUE;
}

echo gmp_strval($gmp_sum).PHP_EOL;
$exec = microtime(TRUE) - $start;
fprintf(STDERR, "EXEC: {$exec} seconds\n");
fprintf(STDERR, "MEM: %d KiB\n", memory_get_peak_usage(TRUE)/1024);