N=int(raw_input())
ans=1
dp=[0 for i in range(6*N+1)]
dp[0]=1
for i in range(7):
    for k in range(6*N, -1, -1):
        for j in range(1, N+1):
            if k-j>=0:
                dp[k]+=dp[k-j]
ans=0
for i in range(6*N, 5*N-1, -1):
    ans+=dp[i]
print ans