#include <bits/stdc++.h>
using namespace std;
static unsigned int
for_num (unsigned int x)
{
return min (x + 1, 19 - x);
}
unsigned long long dp[19];
int
main (void)
{
char buf[32];
fill (buf, buf + 32, 0);
scanf ("%s", buf);
unsigned int n = strlen (buf);
reverse (buf, buf + n);
dp[0] = 1;
for (unsigned int i = 1; i <= n; i ++)
{
dp[i] = dp[i - 1] * for_num (buf[i - 1] - '0');
if (i > 1
&& buf[i - 1] == '1'
&& buf[i - 2] < '9')
dp[i] += dp[i - 2] * for_num (10 * (buf[i - 1] - '0')
+ (buf[i - 2] - '0'));
}
printf ("%llu\n", dp[n]);
return 0;
}