#define  _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <algorithm>
#include <utility>
#include <functional>
#include <cstring>
#include <queue>
#include <stack>
#include <math.h>
#include <iterator>
#include <vector>
#include <string>
#include <set>
#include <math.h>
#include <iostream>
#include <map>
#include <iomanip>
#include <time.h>
#include <stdlib.h>
#include <list>
#include <typeinfo>
#include <list>
#include <set>
#include <cassert>
#include<fstream>
#include <cstdlib>
#include <unordered_map>
using namespace std;
#define Ma_PI 3.141592653589793
#define eps 0.0000000001
#define LONG_INF 3000000000000000000
#define GOLD 1.61803398874989484820458
#define MAX_MOD 1000000007 
#define REP(i,n) for(long long i = 0;i < n;++i)
#define seg_size 524288
using namespace std;
long long calc(long long a, long long b) {
	long long ans = 1;
	a %= MAX_MOD;
	while (b != 0) {
		if (b % 2 == 1) {
			ans *= a;
			ans %= MAX_MOD;
		}
		a *= a;
		a %= MAX_MOD;
		b /= 2;
	}
	return ans;
}
int main() {
	long long b, c, d;
	cin >> b >> c >> d;
	b %= MAX_MOD;
	c %= MAX_MOD;
	if (c == 1) {
		d %= MAX_MOD;
		cout << b*d << endl;
		return 0;
	}
	long long geko = c - 1LL;
	geko %= MAX_MOD;
	long long ans = calc(c,d) - 1LL;
	ans += MAX_MOD;
	ans %= MAX_MOD;
	ans *= c;
	ans %= MAX_MOD;
	ans *= b;
	ans %= MAX_MOD;
	ans *= calc(geko, MAX_MOD - 2LL);
	ans %= MAX_MOD;
	cout << ans << endl;
	return 0;
}