12
 1378
 51202278
 989898989
 4
 7
 9
 6
 8
 12193721
 999999995
 999999999
 11
 999999996
 999999998
 3
 14
 15
 10
 999999994
 1000
 13781378
 5
 999999997
 1000000000
 13
 16
 0

6
 4
 4
 8
 6
 2
 8
 4
 6
 8
 2
 2
 2
 6
 4
 2
 4
 2
 4
 4
 6
 4
 8
 8
 6
 8
 6
 1

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin>>n;
	if(n==0)
	{
		cout<<"1";
		return 0;
	}
	switch(n%4)
	{
		case 1:
		cout<<"8";
		break;
		case 2: 
		cout<<"4";
		break;
		case 3: 
		cout<<"2";
		break;
		case 4:
		cout<<"6";
		break;
	}
	return 0;
}