403511: GYM101189 A Arpa’s hard exam and Mehrdad’s naive cheat(Hard)

There exists an island called Arpa’s land, some beautiful girls are living there, as ugly ones do.

Mehrdad wants to become minister of Arpa’s land. Arpa has prepared an exam. Exam has only one question, given n, print the last digit of 1378ⁿ.

Mehrdad has become quite confused and wants you to help him. Please help, although it's a naive cheat.

The single line of input contains one integer n (0  ≤  n  ≤  10¹⁰⁶).

Print single integer — the last digit of 1378ⁿ.

1

8

2

4

In the first example, last digit of 1378¹ = 1378 is 8.

In the second example, last digit of 1378² = 1378·1378 = 1898884 is 4.