#include <iostream>

using namespace std;
int inserare(int n)
{
    int m=0,p=1,c;
    while(n>9)
    {
        c=n%10;
        m=m+p*c;
        if(c%2==0 && (n/10)%2==0)
        {
            p*=10;
        }
        p*=10;
        n/=10;
    }
    m=n*p+m;
    return m;
}
int main()
{
    int n,p;
    cin>>n;
    cout<<inserare(n);
    return 0;
}