#include<bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using mint=modint998244353; //1000000007;
using ll=long long;
using pp=pair<int,int>;
#define sr string 
#define vc vector
#define fi first
#define se second
#define rep(i,n) for(int i=0;i<(int)n;i++)
#define pb push_back
#define all(v) v.begin(),v.end()
#define pque priority_queue
#define bpc(a) __builtin_popcount(a)
int main(){
  int t=6;
  auto f=[&](sr a,sr b)->sr{
    sr res=a;
    rep(i,t){
      int xa=a[i]-'0';
      int xb=b[i]-'0';
      xa=(xa+xb)%10;
      res[i]='0'+xa;
    }
    return res;
  };
  auto ff=[&](sr a,int x)->sr{
    rep(i,t){
      int d=a[i]-'0';
      d*=x;
      d%=10;
      a[i]='0'+d;
    }
    return a;
  };
  set<sr>s;
  vc<sr>v(t); rep(i,t)cin>>v[i];
  rep(i,1000000){
    auto ni=i;
    sr now=sr(t,'0');
    rep(j,t){
      int a=ni%10;
      now=f(now,ff(v[j],a));
      ni/=10;
    }
    s.insert(now);
  }
  int ans=s.size();
  cout<<ans;
      
}