#include<stdio.h>
#include<stdlib.h>
typedef struct node
{
    int data;
    struct node *left, *right;
}Node;
Node *root=NULL;
Node* create(int num)
{
    Node *newNode=(Node*) malloc (1 * sizeof(Node));
    newNode->data=num;
    newNode->left=NULL;
    newNode->right=NULL;
    return newNode;
}
Node* insert(Node *root,int num)
{
    if(root==NULL){
        return create(num);
    }
    if(num<root->data){
        root->left=insert(root->left,num);
    }
    else if(num>root->data){
        root->right=insert(root->right,num);
    }
    return root;
}
void inorder(Node *root)
{
    if(root!=NULL)
    {
        inorder(root->left);
        printf("%d ",root->data);
        inorder(root->right);
    }
}
Node* search(Node *root,int num)
{
    if(root == NULL || root->data==num){
        return root;
    }
    else if(num<root->data){
        return search(root->left,num);
    }
    return search(root->right,num);
}
Node* minimum(Node *root)
{
    if(root==NULL)
        return root;
    if(root->left!=NULL)
        return minimum(root->left);
    return root;
}
Node* deletion(Node *root,int num)
{
    if(root == NULL)
        return root;
    if(num<root->data)
        root->left=deletion(root->left,num);
    else if(num>root->data)
        root->right=deletion(root->right,num);
    else
    {
        if(root->left==NULL && root->right=NULL){
            return NULL;
        }
        else if(root->left!=NULL && root->right==NULL){
            return root->left;
        }
        else if(root->left==NULL && root->right!=NULL){
            return root->right;
        }
        else{
            Node *temp=minimum(root->right);
            root->data=temp->data;
            root->right=deletion(root->right,temp->data);
        }
    }
    return root;
}
int main()
{
    int size,num,itr,val;
    scanf("%d",&size);
    for(itr=1;itr<=size;itr++)
    {
        scanf("%d",&num);
        root=insert(root,num);
    }
    scanf("%d",&val);
    if(search(root,val)==NULL)
    {
        printf("-1");
        return 0;
    }
    root=deletion(root,val);
    inorder(root);
    return 0;
}