#include <cstdio>

// mod 3: constant
// mod 5: determined only by the lowest one digit
// mod 8: determined only by the lowest three digits

int main() {
    int n;
    std::scanf("%d", &n);
    char s[200000]{};
    std::scanf("%s", s);
    int cnt[10]{}, flg[40]{};
    for (int i = 0; i < n; ++i) ++cnt[s[i] - '0'];
    for (int x = 1; x <= 9; ++x) {
        --cnt[x];
        for (int y = 1; y <= 9; ++y) {
            if (n <= 1) y = 0;
            else --cnt[y];
            for (int z = 1; z <= 9; ++z) {
                if (n <= 2) z = 0;
                else --cnt[z];
                if (cnt[x] >= 0 and cnt[y] >= 0 and cnt[z] >= 0) {
                    int mod8 = (100 * z + 10 * y + x) % 8;
                    int mod5 = x % 5;
                    flg[mod8 * 5 + mod5] = 1;
                }
                if (n <= 2) break;
                else ++cnt[z];
            }
            if (n <= 1) break;
            else ++cnt[y];
        }
        ++cnt[x];
    }
    int ans = 0;
    for (int v = 0; v < 40; ++v) ans += flg[v];
    std::printf("%d\n", ans);
}