#include <stdio.h>

int main() {
    int N;
    
    if (scanf("%d", &N) != 1) return 0;

    int angka[N];
    for (int i = 0; i < N; i++) {
        scanf("%d", &angka[i]);
    }

    int jumlah_ketemu = 0;

    for (int i = 0; i < N; i++) {
        long long total_sementara = 0;

        for (int j = i; j < N; j++) {
            total_sementara = total_sementara + angka[j];

            if (total_sementara == 47) {
                jumlah_ketemu = jumlah_ketemu + 1;
                break;
            }

            if (total_sementara > 47) {
                break;
            }
        }
    }

    printf("%d\n", jumlah_ketemu);

    return 0;
}