package main

import (
	"fmt"
	"math"
)

func main() {
	var n int
	_, _ = fmt.Scan(&n)

	mod := int(math.Pow10(9)) + 7
	fmt.Println((1 + (12*Pow10Mod793(n, mod)-12)/9) % mod)
}

func Pow10Mod793(n, mod int) int {
	if n == 1 {
		return 10
	} else if n%2 == 1 {
		return (Pow10Mod793(n-1, mod) * 10) % mod
	} else {
		m := Pow10Mod793(n/2, mod)
		return (m * m) % mod
	}
}