// editor4
#include<stdio.h>

int findMarble(int *arr, int *size){
    int found=-1;
    for(int i=0;i<size;i++){
        if(*(arr+i)==x){
            found = i;
            for(int j=i;j<size-1;j++){
                *(ptr+j)=*(ptr+j+1);
            }
            *size--;
            return found;
        }
    }
    return found;
}

int main(){
    int n, x, found=0;
    scnaf("%d", &n);
    
    if(n<0){
        printf("Invalid input");
        return 0;
    }
    
    int arr[n];
    for(int i=0;i<n;i++){
        scanf("%d", &arr[i]);
    }
    scanf("%d", &x);
    
    if(findMarble(arr, &n)==-1){
        printf("Marble not found");
    }
    else{
        for(int i=0;i<n;i++){
        printf("%d", arr[i]);
    }
    return 0;

}