public static void main(String[] args) throws IOException {

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

StringTokenizer st = new StringTokenizer(br.readLine());

int n = Integer.parseInt(st.nextToken());

int m = Integer.parseInt(st.nextToken());

int k = Integer.parseInt(st.nextToken());

System.out.println(getPathSum(n, m, k));

}

private static int getPathSum(int n, int m, int k) {

int[][] sum = new int[n + 1][m + 1];

sum[1][0] = 1;

int x = k == 0 ? 1 : ((k - 1) / m) + 1;

int y = k == 0 ? 1 : ((k % m) == 0 ? m : k % m);

for (int i = 1; i <= x; i++) {

for (int j = 1; j <= y; j++) {

sum[i][j] = sum[i][j - 1] + sum[i - 1][j];

}

}

for (int i = x; i <= n; i++) {

for (int j = y; j <= m; j++) {

sum[i][j] = sum[i][j - 1] + sum[i - 1][j];

}

}

return sum[n][m];

}