#include <stdio.h>
#include <stdint.h>
void find_top_3(uint8_t *arr, uint8_t n) {
    uint8_t top = 0;
    uint8_t mid = 0;
    uint8_t low = 0;
    for (int i = 0; i < n; i++) {
        if (arr[i] > top) {
            low = mid;
            mid = top;
            top = arr[i];
        } else if (arr[i] > mid) {
            low = mid;
            mid = arr[i];
        } else if (arr[i] > low) {
            low = arr[i];
        }
    }
    if (low > 0) printf("%hhu %hhu %hhu", top, mid, low);
    else if (mid > 0) printf("%hhu %hhu", top, mid);
    else printf("%hhu", top);
    
}
int main() {
    uint8_t n;
    scanf("%hhu", &n);
    uint8_t arr[100];
    for (uint8_t i = 0; i < n; i++) {
        scanf("%hhu", &arr[i]);
    }
    find_top_3(arr, n);
    return 0;
}
Input
6 10 90 20 80 70 30
Expected Output
90 80 70