from collections import *
import sys
import heapq
import bisect
import itertools
from functools import lru_cache
from types import GeneratorType
from fractions import Fraction
import math
import copy

# sys.setrecursionlimit(int(1e7))
# @lru_cache(maxsize=None) # CPython特化
# @bootstrap # PyPy特化(こっちのほうが速い) yield dfs(), yield Noneを忘れずに


def bootstrap(f, stack=[]):  # yield
    def wrappedfunc(*args, **kwargs):
        if stack:
            return f(*args, **kwargs)
        else:
            to = f(*args, **kwargs)
            while True:
                if type(to) is GeneratorType:
                    stack.append(to)
                    to = next(to)
                else:
                    stack.pop()
                    if not stack:
                        break
                    to = stack[-1].send(to)
            return to

    return wrappedfunc


dxdy1 = ((0, 1), (0, -1), (1, 0), (-1, 0))  # 上下左右
dxdy2 = ((0, 1), (0, -1), (1, 0), (-1, 0), (1, 1), (-1, -1), (1, -1), (-1, 1))  # 8方向すべて
dxdy3 = ((0, 1), (1, 0))  # 右 or 下
dxdy4 = ((1, 1), (1, -1), (-1, 1), (-1, -1))  # 斜め
INF = float("inf")
MOD = 998244353
mod = 998244353
MOD2 = 10**9 + 7
mod2 = 10**9 + 7
# memo : len([a,b,...,z])==26
# memo : 2^20 >= 10^6
# 小数の計算を避ける : x/y -> (x*big)//y  ex:big=10**9

input = lambda: sys.stdin.readline().rstrip()
mi = lambda: map(int, input().split())
li = lambda: list(mi())
ii = lambda: int(input())
py = lambda: print("Yes")
pn = lambda: print("No")
pf = lambda: print("First")
ps = lambda: print("Second")

P = ii()
dp = [[[0] * 2 for _ in range(3)] for _ in range(P + 1)]
dp[0][0][0] = 1
for i in range(P):
    for j in range(3):
        for k in range(10):
            for m in range(2):
                dp[i + 1][(j + k) % 3][m | (k == 3)] += dp[i][j][m]
print(dp[-1][0][0] + dp[-1][1][1] + dp[-1][2][1] + dp[-1][0][1] - 1)