/*
	$$$$$$$\                      $$\           $$$$$$$\
	$$  __$$\                     \__|          $$  __$$\
	$$ |  $$ | $$$$$$\   $$$$$$\  $$\  $$$$$$$\ $$ |  $$ | $$$$$$\   $$$$$$\   $$$$$$$\ $$$$$$\
	$$$$$$$\ |$$  __$$\ $$  __$$\ $$ |$$  _____|$$$$$$$\ | \____$$\ $$  __$$\ $$  _____|\____$$\
	$$  __$$\ $$ /  $$ |$$ |  \__|$$ |\$$$$$$\  $$  __$$\  $$$$$$$ |$$ |  \__|$$ /      $$$$$$$ |
	$$ |  $$ |$$ |  $$ |$$ |      $$ | \____$$\ $$ |  $$ |$$  __$$ |$$ |      $$ |     $$  __$$ |
	$$$$$$$  |\$$$$$$  |$$ |      $$ |$$$$$$$  |$$$$$$$  |\$$$$$$$ |$$ |      \$$$$$$$\\$$$$$$$ |
	\_______/  \______/ \__|      \__|\_______/ \_______/  \_______|\__|       \_______|\_______|
*/
#include <bits/stdc++.h>
#include <unordered_map>

using namespace std;

#define pb push_back
#define mp make_pair
#define pii pair <int,int>
#define si pair<string, int>
#define is pair<int, string>
#define in insert
#define X first
#define Y second
#define _ << " " <<
#define sz(x) (int)x.size()
#define all(a) (a).begin(),(a).end()
#define FOR(i, a, b) for (int i = a; i < b; ++i)
#define REP(i, n) FOR(i, 0, n)
#define BITS(x) __builtin_popcount(x)
#define mset memset
#define mcpy memcpy

typedef long long ll;
typedef long double ld;
typedef vector <int> vi;
typedef vector <pii> vpi;
typedef vector <ll> vll;
typedef vector<pair<string, int>> vsi;
typedef vector<pair<int, string>> vis;
//((float) t)/CLOCKS_PER_SEC

const int MOD = 1e9 + 7;
const int PI = acos(-1);
const int LOG = 32;

inline int sum(int a, int b){
  if (a + b >= MOD)
  	return a + b - MOD;
  if (a + b < 0)
  	return a + b + MOD;
  return a + b;
}

inline void add(int &a, int b){
  a = sum(a, b);
}

inline int mul(int a, int b){
  return (ll)a * (ll)b % MOD;
}

ll n, m, k, mat[25][25], sol;

unordered_map <pair <pii, ll>, ll> DP, bio;

ll dp(int x, int y, ll sum){
	if (x >= n || y >= m)
		return 0;
	sum ^= mat[x][y];
	if (x == n - 1 && y == m - 1){
		if (sum == k)
			return 1;
		else
			return 0;
	}
	if (bio[{{x, y}, sum}])
		return DP[{{x, y}, sum}];
	bio[{{x, y}, sum}]++;
	ll ret = 0;
	ret = (dp(x + 1, y, sum) + dp(x, y + 1, sum));
	DP[{{x, y}, sum}] = ret;
	return ret;
}

int main ()	{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin >>n>>m>>k;
	FOR(i, 0, n){
		FOR(j, 0, m){
			cin >>mat[i][j];
		}
	}
	cout <<dp(0, 0, 0)<<endl;
	return 0;
}