#include<stdio.h>
#define int long long
#define MOD ((int)1e9+7)

#define IE9  111111112ll

signed main(){
	int N, P = 1, x = 10;
	
	scanf("%lld",&N);
	
	while(N){
		if(N&1) P *= x;
		x *= x;
		P %= MOD;
		x %= MOD;
		N>>=1;
	}
	
	printf("%d",(3*(P+MOD-1)*IE9+P)%MOD);
	
	return 0;
}