#include <iostream>

using namespace std;
int dp[200005][8];
int main()
{
    int n;
    cin >> n;
    string s;
    cin >> s;
    for(int i = 0; i <= n; i++) {
        for(int j = 0; j < 8; j++) {
            dp[i][j] = 0;
        }
    }
    dp[0][0] = 1;
    int MOD = 1e9 + 7;
    for(int i = 0; i < n; i++) {
        for(int remainder = 0; remainder < 8; remainder++) {
            dp[i + 1][remainder] += dp[i][remainder];
            dp[i + 1][remainder] %= MOD;
            dp[i + 1][(remainder * 10 + (s[i] - '0')) % 8] += dp[i][remainder];
            dp[i + 1][(remainder * 10 + (s[i] - '0')) % 8] %= MOD;
        }
    }
    cout << dp[n][0]  - 1 << endl;
}