#include <iostream.h>
#include <conio.h>
 
int main()
{
 int a[5]={0,0}; //5 because max value of int is 32767
 int no, size=0;
 cin>>no;
 int r, t, i;
 t=no;
 while (no)  //for claculating the no of digits
 {
  r=no%10;
  no/=10;
  size++;
 }
 while (t) //storing digits in the array
 {
  r=t%10;
  t/=10;
  a[i]=r;
  i++;
 }
 for (i=0; i<size; i++)  //display
 cout<<a[i];
 getch();
 return 0;
}

 
 #include <iostream>
 
 #include <conio>
 
 void rev(int); 
 
 void main()
 {
        int a;
 
       cin >> a;
 
       rev(a);
 
      getch();
 }
 
 void rev(int a)
 {
        if(a)
        {
               cout << a%10;
               rev(a/10);
         }
 }