Why does gatling complain about a protocol error in cgi?

Question

Apache HTTP Server

Script:

#!/usr/bin/tclsh
puts "Status: 200 OK"
puts "Content-Language: ru"
puts "Content-Type: text/html; charset=utf-8"
puts ""
puts ""
puts "YES!!!"
exit

Gatling issues when accessed:

<title>Gateway Broken</title>
protocol error

Apache is working fine. The exhaust to the console is also correct.
What is the problem?