P=int(raw_input())
dp=[[[0 for i in range(2)] for k in range(3)] for j in range(P+1)]
dp[0][0][0]=1
ans=0
for i in range(0,P):
    for j in range(3):
        for k in range(2):
            for b in range(10):
                if b==0 and i==0:
                    continue
                I,J,K=i+1,(j+b)%3,k
                if b==3:
                    K=1
                dp[I][J][K]+=dp[i][j][k]
                if K==1 and J!=0:
                    ans+=dp[i][j][k]
print ans + pow(10,P)/3