from math import ceil
from math import log10

c=""
x = int(input())

if 3/2*2 == 2:
    c=x**2+5
else:
    x = 10**(ceil(log10(x)))-x
    c = round(1/3*2**(-6+x)*x*(15+3*2**(1+x)+3**x-3*(8+2**x)*x+6*x**2))
print(c)