#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,x,i;
	int a[n];
	cin>>n;
	for(i=0;i<n;i++){
		cin>>a[i];
	}
	cin>>x;
	i=x-1;
	for(;i<n-2;i++){
		a[i]=a[i+1];
		 
		
	}
	for(i=1;i<=n-2;i++){
		cout<<a[i];
	}
	
	return 0;
} 


/**************************************************************
	Problem: 1162
	User: jiangyuanfeng
	Language: C++
	Result: Runtime Error
****************************************************************/