eol

#!/usr/bin/env python3
import os
import sys


def run(in_stream, out_stream):
    trailing_eof = False
    while True:
        data = in_stream.read(2048)
        if not data:
            if not trailing_eof:
                out_stream.write('\n')
            break

        out_stream.write(data)
        if data[-1] == '\n':
            trailing_eof = True
        else:
            trailing_eof = False


if __name__ == '__main__':
    basename = os.path.basename(sys.argv[0])
    try:
        run(sys.stdin, sys.stdout)
    except KeyboardInterrupt:
        sys.stderr.write('\n')
        sys.exit(130)
    except IOError as e:
        sys.stderr.write("%s: %s: %s\n" % (basename, e.filename, e.strerror))
        sys.exit(1)