#include <cstdio>
#include <cstdint>

constexpr intmax_t mod = 1e9+7;

intmax_t modpow(intmax_t base, intmax_t iexp) {
  intmax_t res = 1;
  for (intmax_t dbl = base; iexp; iexp >>= 1) {
    if (iexp & 1) res = res * dbl % mod;
    dbl = dbl * dbl % mod;
  }
  return res;
}

intmax_t moddiv(intmax_t n, intmax_t d) {
  return n * modpow(d, mod-2) % mod;
}

int main() {
  intmax_t n;
  scanf("%jd", &n);

  // 3, 30, 300, ...
  intmax_t res = 3 * moddiv((modpow(10, n)+mod-1)%mod, 9);
  (res += modpow(10, n)) %= mod;

  printf("%jd\n", res);
}