struct TNode
{
    int data;
    TNode* prev=NULL;
};

int pop(TNode *&head)
{
    int ret = head->data;
    TNode *p = head;
    head = head->prev;
    delete(p);
    return ret;
}
void push (int data, TNode*&head)
{
    TNode *p = new TNode;
    p->data = data;
    p->prev = head;
    head = p;
}

int main()
{
    TNode* mainstack = NULL, *odd = NULL, *even = NULL;
    ifstream in("in.txt");
    ofstream out("out.txt");
    int tmp;
    while(in.good())
    {
        in>>tmp;
        push(tmp, mainstack);
    }
    pop(mainstack);
    while(mainstack)
    {

        if(mainstack->data%2==0) push(mainstack->data,even);
        else push(mainstack->data,odd);
        mainstack = mainstack->prev;
    }

    return 0;
}