//
// Created by zacharias on 2026-04-17.
//

#include <cstdio>

int main() {
    int size = 0;
    while (scanf("%d", &size) == 1) {
        int total = 0;
        for (int i = 0; i < size; i++) {
            int n = 0;
            scanf("%d", &n);
            if (n < 0) {
                total++;
            }
        }
        printf("%d\n", total);
    }
}