MOD = 10**9+7
N = int(input())
A = [1]*(N+10)
for i in range(2,N+10):
    A[i] = (A[i-1]*i)%MOD
B = [1]*(N+10)
B[N+9] = pow(A[N+9],MOD-2,MOD)
for i in range(N+8,1,-1):
    B[i] = (B[i+1]*(i+1))%MOD
def comb(n,k):
    if k>n or k<0:return 0
    return (A[n]*B[k]*B[n-k])%MOD
print(comb(N+9,9))