#include <iostream>
#include <vector>
#include <math.h>
#include <string>
#include <algorithm>
#include <bitset>
#include <stack>
#include <sstream>
#include <map>

using namespace std;

int main(int argc, const char * argv[])
{
    while (true) {
        string str;
        cin >> str;
        if (str == "0")break;
        long long DP[5001];
        DP[0] = 1;
        for (int i=1;i<str.length();i++) {
            int temp = (str[i-1]-'0')*10;
            temp += (str[i]-'0');
            if (str[i]-'0')DP[i] += DP[i-1];
            if (temp <= 26 && temp > 9 )DP[i] += i>1? DP[i-2]: DP[0];
            //cout << "substring: " << str.substr(0, i+1) << " now equal: " << DP[i] << endl;
        }
        cout << DP[str.length()-1] << endl;
    }
}