#include <stdio.h>

int main(int argc, char *argv[]) {
  char c = ' ';
  while (c = getchar() != EOF)
    putchar(c);
}

while True:
  print(input())

let stdin = process.openStdin();

stdin.addListener("data", (d) => console.log(d.toString()));

loop |> gets >> puts

with Ada.Text_IO; use Ada.Text_IO;

procedure AI is
  S: String(1 .. 500);
  Last: Integer;
begin
  loop
    Get_Line(S, Last);
    Put_Line(S);
  end loop;
end AI;

while ($i = <STDIN>) { print i }

fun main(vararg args: String) = while (true) { println(readLine()); }

while (true)
  println(readline())
end

while true do print(io.read()) end