n=gets.to_i
a=[1]
2.upto(65) do |i|
  a<< a[-1]*i
end
if n>65
  puts "000000000000"
else
  if a[n-1]<10**13
    puts a[n-1]
  else
    puts a[n-1].to_s[-12..-1]
  end
end