last digit n**p pow (pas de moi)

import sys
import math

# Auto-generated code below aims at helping you parse
# the standard input according to the problem statement.

n = int(input())
p = int(input())

# Write an action using print
# To debug: print("Debug messages...", file=sys.stderr)

last = n%10
for _ in range(p-1):
    last = last*n%10
    print(last, file=sys.stderr)

print(last)