var?
n, m: longint;
a: byte;
begin
readln(n);
m := 0;
while n>0 do begin
a := n mod 10;
n := n div 10;
m := m*10 + a;
end;
writeln(m);
readln;
end.
var?
n, m: longint;
a: byte;
begin
readln(n);
m := 0;
while n>0 do begin
a := n mod 10;
n := n div 10;
m := m*10 + a;
end;
writeln(m);
readln;
end.