function second(a, b)
  s_a = size(a)(2);
  s_b = size(b)(2);

  if (s_a > s_b)
    i = s_a - s_b;
    zer = zeros(1, i);
    b = [b, zer];
  elseif (s_b > s_a)
    i = s_b - s_a;
    zer = zeros(1, i);
    a = [a, zer];
  endif

  c_add = a + b
  c_mult = a .* b

  if (s_a >= s_b)
    ost =[];
    divider = fix(a(1) ./ b(1));
    for i = 1:s_a
      ost = [ost a(i) - divider * b(i)];
    endfor
  else
    ost =[];
    divider = fix(b(1) ./ a(1));
    for i = 1:s_b
      ost = [ost b(i) - divider * a(i)];
    endfor
  endif

  divider
  ost