var
  a, b, c: integer;

begin
  read(a, b, c);
  if (a > 0) then write(sqr(a), ' ') else write(a, ' ');
  if (b > 0) then write(sqr(b), ' ') else write(b, ' ');
  if (c > 0) then write(sqr(c)) else write(c);
end.