#include <bits/stdc++.h>

using namespace std;

int main() {
    string b;
    cout << "Input B:\n";
    cin >> b;
    int n = b.size();
    vector<vector<int>> dp(n + 1, vector<int> (10, 1));
    for(int i = 1; i <= n; i++) {
        int bdigit = (b[i-1] - '0');
        for(int j = 0; j <= 9; j++) {
            dp[i][j] = 0;
            if(j - bdigit >= 0) {   // a[i] - a[i-1] = b[i-1]
                dp[i][j] += dp[i-1][j-bdigit];
            }
            if(j + bdigit <= 9 && bdigit != 0) {   // a[i] - a[i-1] = -b[i-1]
                dp[i][j] += dp[i-1][j+bdigit];
            }
        }
    }
    int Nb = 0;
    for(int i = 0; i <= 9; i++) {
        Nb += dp[n][i];
    }
    cout << Nb;
    return 0;
}