#include<stdio.h>

int main(){
    int n;
    
    scanf("%d",&n);
    
    if(n<0){
        printf("Invalid  input\n");
        return 0;
    }
    
    if(n==0){
        printf("\n\n");
        return 0;
    }
    
    int original[10];
    int modified[10];
    int modcount=0;
    
    for(int i=0;i<n;i++){
        scanf("%d",&original[i]);
    }
    for(int i=0;i<n;i++){
        printf("%d",original[i]);
        if(i<n-1){
            printf(" ");
        }
    }
    printf("\n");
    
    for(int i=0;i<n;i++){
        int isDuplicate=0;
        
        for(int j=0;j<modcount;j++){
            if(modified[j]==original[i]){
                isDuplicate=1;
                break;
            }
        }
        if(!isDuplicate){
            modified[modcount]=original[i];
            modcount++;
        }
    }
    for(int i=0;i<modcount;i++){
        printf("%d",modified-1);
        if(i<modcount-1){
            printf(" ");
        }
    }
    printf("\n");
    
    return 0;
}