var
  a, b, c, d, max, min: integer;

begin
  readln(a, b, c, d);
  if (a<=100) and (a>=-100) and (b>=-100) and (b<=100) and (c>=-100) and (c<=100) and (d>=-100) and (d<=100) then 
  begin
  if (a > b) and (a > c) and (a > d) then max := a;
  if (b > a) and (b > c) and (b > d) then max := b;
  if (c > a) and (c > b) and (c > d) then max := c;
  if (d > a) and (d > b) and (d > c) then max := d;
  if (a < b) and (a < c) and (a < d) then min := a;
  if (b < a) and (b < c) and (b < d) then min := b;
  if (c < a) and (c < b) and (c < d) then min := c;
  if (d < a) and (d < b) and (d < c) then min := d;
  writeln('min = ', min);
  writeln('max = ', max);
  end.
end.