#! /usr/bin/env python

import re, sys, os

def usage(full_progname):
    usage_str = "  Usage: " + full_progname + """
  Reads an official class list from stdin with tab-separated lines: 
   last first middle full_name BU-ID login etc
  Prints on stdout the class grading list with lines:
    simplified login (no @bu.edu), simplified name (20 chars), BU-ID

  Before running the program, you may need to run
  tr \\r \\n < class_list > processed-class-list
"""
    sys.stderr.write(usage_str)
    sys.exit(1)


def parse_line(line):
    """Assume each name has at least two characters.

    RETURNS: a hash containing real_name, buid, login
    For efficiency, compile the rx's outside the function.

    Earlier class list:
    parse_rx = r'(.*)\s(\w\d\d-\d\d-\d\d\d\d)\s+(\S+\@\S+)\s'
    name, buid, login = re.match(parse_rx, line).groups()
    """

    fullname, buid, login = line.split("\t")[3:6]
    return fullname, buid, login


def shorten_name(name, length):
    """For efficiency, compile the rx's outside the function.
    """
    name = name.lstrip()
    name = name.rstrip()
    name = re.sub(r"\s+", " ", name)

    length_rx = r"^(.{" + `length` + r"}).*$"
    return re.sub(length_rx, "\g<1>", name)


def shorten_login(login):
    """For efficiency, compile the rx's outside the function.
    """
    return re.sub(r"\@bu\.edu$", "", login)
    # return re.sub(r"(\w+)\@bu\.edu$", "\g<1>", login) # OK
    # return re.sub(r"(\w+)\@bu\.edu$", "\1", login)    # Does not work


"main"

if 1 != len(sys.argv):
    usage(sys.argv[0])

while 1:
    input_line = sys.stdin.readline()
    if not input_line: break
    name, buid, login = parse_line(input_line)
    name = shorten_name(name, 20)
    login = shorten_login(login)
    # Space after login is needed for later hand insertion of scores
    print "%-9s     %-21s %-11s" % (login, name, buid)