#include<iostream>
using namespace std;
#include<algorithm>
#include<cmath>
#include<string>
#include <math.h>
int arr[100000] = { 1,1 };
int main() {
int a;
int sum = 0;
cin >> a;
string a1 = to_string(a);
int n = a1.length();
for (int i = 0; i < n; i++) {
arr[i] = (a % 10);
a /= 10;
}
for (int i = n; i >= 0; i--) {
sum += pow(10, n-i-1) * arr[i];
}
cout << sum;
}

#include<iostream>
using namespace std;
int main(){
    string a;
    getline(cin,a);
    string::iterator it=a.end()-1;
    for(;it>=a.begin();it--) cout<<*it;
    return 0;
}

#include <iostream>
using namespace std;
int main()
{
int x;
int y=0;
cin>>x;

while( x>0 )
{
int x1=x%10;

y=y*10+x1;

x=x/10;

}

cout<<y<<endl;
return 0;
}

#include<iostream>

using namespace std;

int main()
{

int a;
cin>>a;
while(a)
{
cout<<a-a/10*10;
a/=10;
}
return 0;
}

#include <iostream>
using namespace std;

int main()
{
int x;
cin>>x;
int y=0;

while( x>0 )
{
int x1=x%10;
cout<<x1;

y=y*10+x1;

x=x/10;

}

return 0;
}

#include <iostream>
using namespace std;

int main()
{
int x;
cin>>x;
int y=0;

for(int xx=x; xx>0; xx=xx/10)
{
int x1=xx%10;

y=y*10+x1;

}

cout<<y<<endl;
return 0;
}

#include<iostream>
using namespace std;

struct Node
{
    int data;
    Node *next;
};

class LinkList
{
private:
    Node *head;
public:
    LinkList()
    {
        head=NULL;
    }

    void set_list(int x)
    {
        Node *tail;
        //int len=get_len(x);
        while(x>0)
        {
            Node *newp=new Node;
            newp->data=x%10;
            if(head==NULL)
            {
                head=newp;
                tail=newp;
            }
            else
            {
                tail->next=newp;
                tail=newp;
            }
            if(tail!=NULL)
                tail->next=NULL;
            x=x/10;
        }
    }

    void output()
    {
        Node *p;
        p=head;
        while(p!=NULL)
        {
            cout<<p->data;
            p=p->next;
        }
        cout<<endl;
    }


    friend int get_len(int x);
};

int get_len(int x)
{
    int flag=0;
    while(x>0)
    {
        x=x/10;
        flag++;
    }
    return flag;
}


int main()
{
    int x;
    cin>>x;
    LinkList list;
    list.set_list(x);
    list.output();

    system("pause");
    return 0;
}

#include <iostream>
using namespace std;

int main()
{
int x,y;
cin>>x;
while( x>0 )
{
int x1=x%10;

x=x/10;
y=y*10+x1;

}

cout<<y<<endl;
return 0;
}