program zz1;
uses crt;
var n:integer;a,b,x,c,y:real;
BEGIN
clrscr;
writeln('vvedi n');
readln(n);
a:=int(n/100);
x:=int(n/10);
b:=x-(a*10);
c:=n-(a*100+b*10);
y:=c*100+b*10+a;
writeln('y=',y:17:2);
readln;
END.