program pro1;

uses
  op, obrabotki;

var
  sved: svedd;

begin
  assign(sved, 'lep_zar');
  vvod(sved);
  vivod(sved);
  count(sved);
end.

unit obrabotki;

interface

uses
  op;

procedure vvod(var sved: svedd);
procedure vivod(var sved: svedd);
procedure count(var sved: svedd);
implementation

procedure vvod(var sved: svedd);
var
  i, n: integer;
  Lepsved:klass;
begin
  rewrite(sved);
  repeat
    writeln('Ââåäèòå êîëè÷åñòâî ó÷åíèêîâ:');
    readln(n);
  until n in [1..maxk];
  for i := 1 to n do
  begin
    writeln(i, '-é ó÷åíèê: ');
    with lepsved do
    begin
      write('Ôàìèèÿ ó÷åíèêà: ');
      readln(secname);
      write('Èíèöèàëû: ');
      readln(io);
      write('Ââåäèòå äåíü: ');
      readln(day);
      write('Ââåäèòå ìåñÿö: ');
      readln(month);
      write('Ââåäèòå ãîä ðîæäåíèÿ:');
      readln(year);
      write(sved, lepsved);
    end;
  end;
  close(sved);
end;


procedure vivod(var sved: svedd);
var
  i, n: integer;
  lepsved: klass;
begin
  reset(sved);
  writeln('-----------------------------');
  writeln('Ó÷åíèê': 10, 'Äàòà': 10);
  writeln('-----------------------------');
  while not eof(sved) do
  begin
    read(sved, lepsved);
    with lepsved do
    begin
      write(lepsved.secname: 5);
      write(' ', lepsved.io: 3);
      write('  ', lepsved.day: 2);
      write('.', lepsved.month: 2);
      writeln('.', lepsved.year: 4);
    end;
  end;
  write('--------------------------------');
  close(sved);
end;

procedure count(var sved: svedd);
var
  q, w, i, n: integer; z, x: real;
  lepsved: klass;
begin
  reset(sved);
  read(sved, lepsved);
  WriteLn;
  q := 0;
  w := 0;
  for i := 1 to n do
  begin
    q := q + lepsved.day;
    w := w + lepsved.month;
  end;
  z := q / n;
  x := w / n;
  WriteLn(' Average date: ', z:0:0, ' ', x:0:0);
  close(sved); assign(sved, 'lep_zar');
end;
end.

unit op;

interface

const
  maxk = 10;

type
  klass = record
    secname: string[20];
    io: string[5];
    day: 1..31;
    month: 1..12;
    year: 1995..2007;
  end;
  svedd = file of klass;

implementation
end.