#include<stdio.h>
void deleteID(int arr[], int*n, int index)
{
    if (index < 0 || index >= *n) {
        printf("Invalid input\n");
        return;
    }
    for (int i = 0; i < *n; i++) {
        printf("%d", arr[i]);
    }
    printf("\n");
}
int main() {
    int n, index;
    scanf("%d", &n);
    int arr[1000];
    for (int i = 0;i < *n; i++) {
        scanf("%d", arr[i]);
        
    }
    scanf("%d", &index);
    deleteID(arr, &n, index);
    return 0;
    
}