#include <bits/stdc++.h>
using namespace std;

int tab[7][7] = {{0, 0, 0, 1, 0, 0, 0},
            {0, 0, 1, 1, 1, 0, 0},
            {0, 1, 0, 1, 1, 1, 0},
            {1, 1, 1, 1, 1, 0, 1},
            {0, 1, 1, 0, 1, 1, 0},
            {0, 0, 1, 1, 1, 0, 0},
            {0, 0, 0, 1, 0, 0, 0}};

const int MAX = 45;
int res[8][8][MAX];


vector <vector <pair <int, int> > > ruchy = {{{1, 1}, {1, -1}, {-1, 1}, {-1, -1}},
                                             {{1, 2}, {1, -2}, {2, 1}, {2, -1}, {-1, 2}, {-1, -2}, {-2, 1}, {-2, -1}}};

int main()
{
    int x,y;
    cin >> x >> y;
    int n; cin >> n;
    res[y][x][0] = 1;

    for(int i = 1; i <= n; ++i)
    {
        for(auto &p : ruchy[i%2])
        {
            for(int y = 0; y < 7; ++y)
            {
                for(int x = 0; x < 7; ++x)
                {
                    int nx = x + p.first;
                    int ny = y + p.second;
                    if(ny >= 0 and nx >= 0 and nx < 7 and ny < 7 and tab[ny][nx] == 1 and tab[y][x] == 1)
                    {
                        res[ny][nx][i] += res[y][x][i - 1];
                    }
                }
            }
        }
    }

    int suma = 0;
    for(int y = 0; y < 7; ++y)
            {
                for(int x = 0; x < 7; ++x)
                {
                    suma += res[y][x][n];
                }
            }
    cout << suma << "\n";
}