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#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,n) for (int i=a;i<n;i++)
#define per(i,a,n) for (int i=n-1;i>=a;i--)
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define SZ(x) ((int)(x).size())
typedef vector<int> VI;
typedef long long ll;
typedef pair<int,int> PII;
typedef double db;
const ll mod=1000000007;
ll powmod(ll a,ll b) {ll res=1;a%=mod; assert(b>=0); for(;b;b>>=1){if(b&1)res=res*a%mod;a=a*a%mod;}return res;}
ll gcd(ll a,ll b) { return b?gcd(b,a%b):a;}
// head

char s[30];
ll dp[30];
int main() {
	scanf("%s",s+1);
	int n=strlen(s+1);
	dp[0]=1;
	rep(i,1,n+1) {
		int f=s[i]-'0';
		dp[i]+=dp[i-1]*(f+1);
		if (i>=2&&s[i-1]=='1') dp[i]+=dp[i-2]*(9-f);
	}
	printf("%lld\n",dp[n]);
}