#include <iostream>
#include <fstream>
#include <iomanip>
#include <climits>
#include <limits>
#include <algorithm>
#include <array>
#include <vector>
#include <deque>
#include <queue>
#include <list>
#include <stack>
#include <string>
#include <functional>
#include <numeric>
#include <map>
#include <set>
#include <cstdlib>
#include <bitset>
#include <unordered_map>
#include <random>
#include <cmath>
#include <complex>

using namespace std;

typedef long long int ll;
typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef pair<int, int> P;
typedef pair<ll, ll> Pll;
typedef vector<ll> vll;
typedef vector<vector<ll>> vvll;

const int INFL = (int)1e9;
const ll INFLL = (ll)1e18;
const double INFD = numeric_limits<double>::infinity();
const double PI = 3.14159265358979323846;
#define Loop(i, n) for(int i = 0; i < (int)n; i++)
#define Loopll(i, n) for(ll i = 0; i < (ll)n; i++)
#define Loop1(i, n) for(int i = 1; i <= (int)n; i++)
#define Loopll1(i, n) for(ll i = 1; i <= (ll)n; i++)
#define Loopr(i, n) for(int i = (int)n - 1; i >= 0; i--)
#define Looprll(i, n) for(ll i = (ll)n - 1; i >= 0; i--)
#define Loopr1(i, n) for(int i = (int)n; i >= 1; i--)
#define Looprll1(i, n) for(ll i = (ll)n; i >= 1; i--)
#define Loopitr(itr, container) for(auto itr = container.begin(); itr != container.end(); itr++)
#define printv(vector) Loop(i, vector.size()) { cout << vector[i] << " "; } cout << endl;
#define printmx(matrix) Loop(i, matrix.size()) { Loop(j, matrix[i].size()) { cout << matrix[i][j] << " "; } cout << endl; }
#define rndf(d) (ll)((double)(d) + (d >= 0 ? 0.5 : -0.5))
#define floorsqrt(x) ((ll)sqrt((double)x) + ((ll)sqrt((double)x) * (ll)sqrt((double)x) <= (ll)(x) ? 0 : -1))
#define ceilsqrt(x) ((ll)sqrt((double)x) + ((ll)x <= (ll)sqrt((double)x) * (ll)sqrt((double)x) ? 0 : 1))
#define rnddiv(a, b) ((ll)(a) / (ll)(b) + ((ll)(a) % (ll)(b) * 2 >= (ll)(b) ? 1 : 0))
#define ceildiv(a, b) ((ll)(a) / (ll)(b) + ((ll)(a) % (ll)(b) == 0 ? 0 : 1))
#define bitmanip(m,val) static_cast<bitset<(int)m>>(val)

/*******************************************************/

namespace mod_op {

	const ll MOD = (ll)1e9 + 7;

	class modll {
	private:
		ll val;
		inline ll modify(ll x) { ll ret = x % MOD; if (ret < 0) ret += MOD; return ret; }
		inline ll inv(ll x) {
			if (x == 0) return 1 / x;
			else if (x == 1) return 1;
			else return modify(inv(MOD % x) * modify(-MOD / x));
		}
	public:
		modll(ll init = 0) { val = modify(init); return; }
		modll(const modll& another) { val = another.val; return; }
		inline modll& operator=(const modll &another) { val = another.val; return *this; }
		inline modll operator+(const modll &x) { return (val + x.val) % MOD; }
		inline modll operator-(const modll &x) { return (val - x.val) % MOD; }
		inline modll operator*(const modll &x) { return (val * x.val) % MOD; }
		inline modll operator/(const modll &x) { return (val * inv(x.val)) % MOD; }
		inline modll& operator+=(const modll &x) { val = (val + x.val) % MOD; return *this; }
		inline modll& operator-=(const modll &x) { val = (val - x.val) % MOD; return *this; }
		inline modll& operator*=(const modll &x) { val = (val * x.val) % MOD; return *this; }
		inline modll& operator/=(const modll &x) { val = (val * inv(x.val)) % MOD; return *this; }
		inline bool operator==(const modll &x) { return val == x.val; }
		inline bool operator!=(const modll &x) { return val != x.val; }
		friend inline istream& operator >> (istream &is, modll& x) { is >> x.val; return is; }
		friend inline ostream& operator << (ostream &os, modll& x) { os << x.val; return os; }
		ll get_val() { return val; }
	};

	modll pow(modll n, ll p) {
		modll ret;
		if (p == 0) ret = 1;
		else if (p == 1) ret = n;
		else {
			ret = pow(n, p / 2);
			ret *= ret;
			if (p % 2 == 1) ret *= n;
		}
		return ret;
	}

	vector<modll> facts;

	inline void make_facts(int n) {
		if (facts.empty()) facts.push_back(modll(1));
		for (int i = facts.size(); i <= n; ++i) facts.push_back(modll(facts.back() * (ll)i));
		return;
	}

	vector<modll> ifacts;
	vector<modll> invs;

	inline void make_invs(int n) {
		if (invs.empty()) {
			invs.push_back(modll(0));
			invs.push_back(modll(1));
		}
		for (int i = invs.size(); i <= n; ++i) {
			// because 0 = MOD = kq + r, 1/k = -q/r
			invs.push_back(invs[(int)MOD % i] * ((int)MOD - (int)MOD / i));
		}
		return;
	}

	inline void make_ifacts(int n) {
		make_invs(n);
		if (ifacts.empty()) ifacts.push_back(modll(1));
		for (int i = ifacts.size(); i <= n; ++i) ifacts.push_back(modll(ifacts.back() * invs[i]));
		return;
	}

	//nCr
	modll combination(ll n, ll r) {
		if (n >= r && r >= 0) {
			modll ret;
			make_facts((int)n);
			make_ifacts((int)n);
			ret = facts[(unsigned)n] * ifacts[(unsigned)r] * ifacts[(unsigned)(n - r)];
			return ret;
		}
		else return 0;
	}

	modll get_fact(ll n) {
		make_facts((int)n);
		return facts[(int)n];
	}

	//log_a(b), if x does not exist, return -1
	ll disc_log(modll a, modll b) {
		ll ret = -1;
		ll m = ceilsqrt(MOD);
		unordered_map<ll, ll> mp;
		modll x = 1;
		Loop(i, m) {
			mp[x.get_val()] = i;
			x *= a;
		}
		x = modll(1) / pow(a, m);
		modll k = b;
		Loop(i, m) {
			if (mp.find(k.get_val()) == mp.end()) k *= x;
			else {
				ret = i * m + mp[k.get_val()];
				break;
			}
		}
		return ret;
	}
}

using namespace mod_op;
typedef vector<modll> vmodll;
typedef vector<vector<modll>> vvmodll;

int main() {
	int n; cin >> n;
	vector<string> s(2);
	cin >> s[0] >> s[1];
  int free = 3;
	modll ans = 1;
	Loop(i, n) {
		if (s[0][i] == s[1][i]) {
			ans *= free;
			free = 2;
		}
		else {
			if (free == 1) {
				ans *= 3;
			}
			else {
				ans *= free * (free - 1);
				free = 1;
			}
			i++;
		}
	}
	cout << ans << endl;
}

Measured memory_bytes: 256