#include<stdio.h>
#include<stdlib.h>

int size,top=-1;
int arr[202];

int isFull(){
    if(top==size-1){
        return 1;
    }else{
        return 0;
    }
}
int isEmpty(){
    if(top==-1){
        return 1;
    }else{
        return 0;
    }
}

void push(int num){
    if(isFull()){
        printf("full");
    }else{
        arr[++top]=num;
    }
}
void travesal(){
    int i;
    for(i=0;i<=top;i++){
        for(int j=i+1;j<=top;j++){
            if(arr[i]== arr[j]){
                for(int k=0;k<=top;k++){
                    arr[k]=arr[k+1];
                }
            
            }
        }
        printf("%d\n",arr[i])
    }
}


int main(){
    int num,i;
    scanf("%d",&size);
    if(size<0){
        printf("Invalid input");
        return 0;
    }
    for(i=0;i<size;i++){
        scanf("%d",&num);
        push(num);
    }
    travesal();
    return 0;
}