program ex1;
var
   num1, num2 : integer;
begin
     writeln (' הכנס מספר דו ספרתי');
     readln(num1,num2);
     num2:= num mod 10 and num div 10  
     writeln (num2);
end.

program test;
var
   num1,num2:integer;
begin
     writeln('Enter a number :');
     readln(num1);
     num2:=(num1 mod 10)*10+num1 div 10;
     writeln('The new number is ',num2);
end.