Решение задачи ExamBegin63

uses PT4Exam;

const
  P = 100;

var
  arr: array[1..P, 1..P] of real;
  m, n, i, j: integer;
  sum: real;

begin
  Task('ExamBegin63');
  Readln(m, n);
  for i := 1 to m do
    for j := 1 to n do
      Read(arr[i, j]);
  sum := 0;
  for i := 1 to n do
  begin
    for j := 1 to m do
      sum := sum + arr[j, i];
    Write(sum / m:6:2);
    sum := 0;
  end;
end.