import java java.lang.System
import java java.io.PrintStream
import java java.io.InputStreamReader
import java java.io.BufferedReader

export func main() {
  let input = java_lang_System_in_get()
  let reader = java_io_InputStreamReader_new_inputstream(input)
  let bufferedReader = java_io_BufferedReader_new_reader(reader)
  let line = java_io_BufferedReader_readLine(bufferedReader)
  let stream = java_lang_System_err_get()
  java_io_PrintStream_println_string(stream, line)
}