#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    set<int> S;
    for(int i=0; i<6; i++){
        string s; cin >> s;
        int x = stoi(s);
        S.insert(x);
    }
    
    vector<bool> already(1000000);
    already.at(0) = true;
    queue<int> Q; Q.push(0);
    int answer = 0;
    while(Q.size()){
        int pos = Q.front(); Q.pop();
        answer++;
        for(auto s : S){
            int x = pos,y = s;
            if(x+s >= 1000000) continue;
            if(already.at(x+s)) continue;
            bool ok = true;
            for(int k=0; k<6; k++){
                int a = x%10,b = y%10;
                if(a+b >= 10){ok = false; break;}
                x /= 10,y /= 10;
            }
            if(ok) already.at(pos+s) = true,Q.push(pos+s); 
        }
    }
    cout << answer << endl;

}