Program TIM_SO_DAO;
Uses crt;
Var n:longint;
Function daoso(n: longint):longint;
Var s:string;
ch:char;
i,l,code:integer;
kq:longint;
Begin
str(n,s);
For i:=1 to length(s) div 2 do
Begin
ch:=s[i];
s[i]:=s[length(s)-i+1];
s[length(s)-i+1]:=ch;
End;
val(s,kq,code);
daoso:=kq;
End;
Begin
Clrscr;
Writeln(' TIM SO DAO CUA MOT SO');
Writeln('--------------------------------------');
Write('Nhap so can tim dao n= ');readln(n);
Writeln('So dao cua ',n,' la: ', daoso(n));
Readln;
End.
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