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;
long long int a,b;
main()
{
    cin>>b;
    b=b-1;
    a=1378;
    while(b--){
    a=a*1378;
    }
  //  cout<<a<<endl;
    cout<<a%10;
}
