// 新年 あけまして 埋め込みます

#include <iostream>
using namespace std;
const int answer_table[4][11][11] = {{{0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0}},{{0,0,0,0,0,0,0,0,0,0,0},{0,1,1,1,1,1,1,1,1,1,1},{0,1,1,1,1,1,0,0,0,0,0},{0,1,1,1,0,0,0,0,0,0,0},{0,1,1,0,0,0,0,0,0,0,0},{0,1,1,0,0,0,0,0,0,0,0},{0,1,0,0,0,0,0,0,0,0,0},{0,1,0,0,0,0,0,0,0,0,0},{0,1,0,0,0,0,0,0,0,0,0},{0,1,0,0,0,0,0,0,0,0,0},{0,1,0,0,0,0,0,0,0,0,0}},{{0,0,0,0,0,0,0,0,0,0,0},{0,0,1,2,4,6,12,18,34,58,106},{0,1,5,12,38,106,0,0,0,0,0},{0,2,12,62,0,0,0,0,0,0,0},{0,4,38,0,0,0,0,0,0,0,0},{0,6,106,0,0,0,0,0,0,0,0},{0,12,0,0,0,0,0,0,0,0,0},{0,18,0,0,0,0,0,0,0,0,0},{0,34,0,0,0,0,0,0,0,0,0},{0,58,0,0,0,0,0,0,0,0,0},{0,106,0,0,0,0,0,0,0,0,0}},{{0,0,0,0,0,0,0,0,0,0,0},{0,0,0,2,9,30,91,258,729,2018,5613},{0,0,9,91,738,5613,0,0,0,0,0},{0,2,91,2022,0,0,0,0,0,0,0},{0,9,738,0,0,0,0,0,0,0,0},{0,30,5613,0,0,0,0,0,0,0,0},{0,91,0,0,0,0,0,0,0,0,0},{0,258,0,0,0,0,0,0,0,0,0},{0,729,0,0,0,0,0,0,0,0,0},{0,2018,0,0,0,0,0,0,0,0,0},{0,5613,0,0,0,0,0,0,0,0,0}}};


int main(){
    int H,W,K; cin >> H >> W >> K;
    cout << answer_table[K][H][W] << endl;
    return 0;
}