import java.util.*;
import java.io.*;

public class Main {
    
    public static Scanner sc = new Scanner(System.in);
    public static PrintWriter pw = new PrintWriter(System.out);
    
    public static void main(String[] args) {
        
        int t = 1;
        while( t > 0 ) {
            solve();
            t--;
        }
        
        pw.flush();
        
    }
    
    static void solve() {
        
        int N = sc.nextInt();
        long ans = 1;
        
        for( long i = 0, cnt = 0; i < 3*N; i++ ) {
            int x = sc.nextInt();
            if( x%3 != 0 ) cnt++;
            if( i%N == N-1 ) {
                ans *= cnt;
                cnt = 0;
            }
        }
        
        pw.println(ans);
        
    }
    
}