#include<stdio.h>
int main(){
    int n, i, j;
    printf("Enter the size of the array: ");
    scanf("%d", &n);
    
    if(n < 0){
        printf("Invalid input\n");
        return 1;
    }
    if(n > 10){
        printf("Invalid input: n must be between -10 and 10.\n");
        return 1;
    }
    
        int is_duplicate = 0;
        for(j = 0; j < i; j++){
            if(arr[i] == arr[j]){
                is_duplicate = 1;
                break;
            }
        }
        if(!is_duplicate){
            printf("%d", arr[i]);
        }
    }
    printf("\n");
    return 0;
}