n = int(input())
# s = '-7xxx5xxxx0' # 1,4,5
# s = '-7xxx5xx2?0' # 1,4,5,8
# s = '-7xxx5xx230' # 1,4,5,8,9
# s = '-7xx45xx230' # 1,4,5,7,8,9
# s = '-7xx4566230'
# s = '-7884566230'
# s = '-7894566230'
s = '-7894561230'

print(s[n])