#include <iostream>
#include <fstream>
#include <string>
#include <cstring> 
#include <cmath>  
#include <cstdlib>
#include <ctime>
#include <vector>
#include <algorithm>
#include <numeric>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <deque>
#include <functional>
#include <cctype>
#include <list>
//#include <boost/multiprecision/cpp_int.hpp>

#define BIT(a) (1 << (a))

using namespace std;
//using namespace boost::multiprecision;

long long MOD = 1000000007;



long long mod_pow(long long x, long long n){
    long long res = 1;
    for(int i = 0;i < 60; i++){
        if(n >> i & 1) res = res * x % MOD;
        x = x * x % MOD;
    }
    return res;
}



int main(void){
    long long B, C, D;
    cin >> B >> C >> D;
    B %= MOD;
    C %= MOD;
    if (C == 1){
        cout << B*(D%MOD)%MOD << endl;
        return 0;
    }
    long long bunsi = B*C%MOD*(1-mod_pow(C, D))%MOD;
    long long bunbo = mod_pow(1-C, MOD-2);
    long long ans = bunsi*bunbo%MOD;
    cout << ans << endl;
    return 0;
}