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#include <bits/stdc++.h>
#ifdef LOC
#include "debuglib.h"
#else
#define deb(...)
#define DBP(...)
#endif
using namespace std;
using ll  = long long;
using Vi  = vector<int>;
using Pii = pair<int, int>;
#define pb push_back
#define mp make_pair
#define x  first
#define y  second
#define rep(i, b, e) for (int i = (b); i < (e); i++)
#define each(a, x)   for (auto& a : (x))
#define all(x)       (x).begin(), (x).end()
#define sz(x)        int((x).size())

int main() {
	cin.sync_with_stdio(0); cin.tie(0);
	cout << fixed << setprecision(18);

	string n; cin >> n;

	vector<ll> dp(sz(n)+1);
	dp[0] = 1;

	rep(i, 1, sz(n)+1) {
		rep(a, 0, 10) rep(b, 0, 10) {
			int c = a+b;
			if (c >= 10) {
				if (i >= 2 && n[i-1]-'0' == c%10 && n[i-2]-'0' == c/10) {
					dp[i] += dp[i-2];
				}
			} else {
				if (n[i-1]-'0' == c) {
					dp[i] += dp[i-1];
				}
			}
		}
	}

	cout << dp.back() << endl;
	return 0;
}