import std;

long modPow(long x, long k, long m) {
    if (k == 0) return 1;
    if (k % 2 == 0) return modPow(x * x % m, k / 2, m);
    return x * modPow(x, k - 1, m) % m;
}

long calc(long n) {
    long mod = 10^^9 + 7;

    long ans = modPow(10, n, mod) + 3 * (modPow(10, n, mod) - 1) * modPow(9, mod-2, mod);
    return ans % mod;
}

void main() {
    long n; scan(n);
    writeln(calc(n));
}

void scan(T...)(ref T a) {
    string[] ss = readln.split;
    foreach (i, t; T) a[i] = ss[i].to!t;
}
T read(T)() { return readln.chomp.to!T; }
T[] reads(T)() { return readln.split.to!(T[]); }
alias readint = read!int;
alias readints = reads!int;