gata

int n, m, x,c=0,p=1,n1,i;
    cin>>n;
    n1=n;
    while(n)
    {
        n=n/10;
        c++;
    }
    if(c%2!=0)
        {
            for(i=1;i<=c/2;i++)
                {
                    p=p*10;
	                n=n1/(p*10)*p+n1%p;
                }
	        cout<<n;

        }
    else
        {x=n%10+(n/10)*10;
        cout<<x;
        }