#include<bits/stdc++.h>
using namespace std;
#include<atcoder/convolution>
#include<atcoder/modint>
typedef atcoder::modint998244353 mint;
typedef long long ll;

#define rep(i, s, n) for (int i = (int)(s); i < (int)(n); i++)
#define rrep(i, s, n) for (int i = (int)(n)-1; i >= (int)(s); i--)

template <typename T> bool chmin(T &a, const T &b) {
	if (a <= b) return false;
	a = b;
	return true;
}

template <typename T> bool chmax(T &a, const T &b) {
	if (a >= b) return false;
	a = b;
	return true;
}

template <typename T> T max(vector<T> &a){
	assert(!a.empty());
	T ret = a[0];
	for (int i=0; i<(int)a.size(); i++) chmax(ret, a[i]);
	return ret;
}

template <typename T> T min(vector<T> &a){
	assert(!a.empty());
	T ret = a[0];
	for (int i=0; i<(int)a.size(); i++) chmin(ret, a[i]);
	return ret;
}

template <typename T> T sum(vector<T> &a){
	T ret = 0;
	for (int i=0; i<(int)a.size(); i++) ret += a[i];
	return ret;
}

int op(int a, int b){
	int ret = 0;
	vector<int> c;
	rep(i,0,6){
		c.push_back((a+b) % 10);
		a /= 10;
		b /= 10;
	}
	rrep(i,0,6){
		ret = ret * 10 + c[i];
	}
	return ret;
}

int main(){
	vector<int> a(6);
	rep(i,0,6){
		cin >> a[i];
	}

	vector<bool> v(1000000);
	vector<int> mada;
	rep(i,0,6){
		if (v[a[i]]) continue;
		v[a[i]] = 1;
		mada.push_back(a[i]);
	}

	while(!mada.empty()){
		int x = mada.back();
		mada.pop_back();
		rep(i,0,6){
			int y = op(x, a[i]);
			if (v[y]) continue;
			v[y] = 1;
			mada.push_back(y);
		}
	}	

	int ans = 0;
	rep(i,0,1000000){
		if (v[i]) ans++;
	}

	cout << ans<<'\n';
}