program B_T;

uses crt;

var a,b:integer;

      C,S:real;

begin

write('nhap a:');readln(a);

write('nhap b:');readln(b);

C:=0;

S:=0;

C:=C+(a+b)*2;

S:=S+a*b;

writeln('chu vi hinh chu nhat la:',C);

writeln('dien tich hinh chu nhat la:',S);

readln;

end.