x, N = gets.chomp.split.map(&:to_i)
@devider = 1000003
list = gets.chomp.split.map{ |i| i.to_i % (@devider - 1) }

dp = Array.new(@devider, -1)

x %= @devider

def my_pow(n, idx)
  res = 1
  if idx > 0
    res = my_pow(n*n % @devider, idx/2)
    res = res * n % @devider if idx & 1 == 1
  end
  return res % @devider
end

result = 0
list.each do |l|
  if dp[l] == -1
    dp[l] = my_pow(x, l)
  end
  result += dp[l]
end

p result % @devider