/*بِسْمِ اللَّهِ الرَّحْمَنِ الرَّحِيم*/

//#pragma GCC optimize("O3,unroll-loops")
//#pragma GCC target("avx,avx2,fma")

#include <bits/stdc++.h>
using namespace std;
#define FASTIO ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);
typedef long long ll;
const double PI = acos(-1.0);
const ll mod = 1e9 + 7;
//const ll mod = 998244353;


inline void normal(ll &a) { a %= mod; (a < 0) && (a += mod); }
inline ll modMul(ll a, ll b) { a %= mod, b %= mod; normal(a), normal(b); return (a * b) % mod; }
inline ll modAdd(ll a, ll b) { a %= mod, b %= mod; normal(a), normal(b); return (a + b) % mod; }
inline ll modSub(ll a, ll b) { a %= mod, b %= mod; normal(a), normal(b); a -= b; normal(a); return a; }
inline ll modPow(ll b, ll p) { ll r = 1; while (p) { if (p & 1) r = modMul(r, b); b = modMul(b, b); p >>= 1; } return r; }
inline ll modInverse(ll a) { return modPow(a, mod - 2); }
inline ll modDiv(ll a, ll b) { return modMul(a, modInverse(b)); }

#define si(x) scanf("%d",&x)
#define sii(x,y) scanf("%d %d",&x,&y)
#define siii(x,y,z) scanf("%d %d %d",&x,&y,&z)
#define sl(x) scanf("%lld",&x)
#define sll(x,y) scanf("%lld %lld",&x,&y)
#define slll(x,y,z) scanf("%lld %lld %lld",&x,&y,&z)
#define ss(ch) scanf("%s",ch)
#define pi(x) prllf("%d",x)
#define pii(x,y) prllf("%d %d",x,y)
#define piii(x,y,z) prllf("%d %d %d",x,y,z)
#define pl(x) prllf("%lld",x)
#define pll(x,y) prllf("%lld %lld",x,y)
#define plll(x,y,z) prllf("%lld %lld %lld",x,y,z)
#define ps(ch) prllf("%s",ch)
#define F(i,a,b)      for(ll i= a; i <= b; i++)
#define R(i,b,a)      for(ll i= b; i >= a; i--)

ll dx[] = {1, -1, 0, 0};
ll dy[] = {0, 0, 1, -1};
ll dx8[] = {0, 0, 1, 1, 1, -1, -1, -1};
ll dy8[] = {1, -1, -1, 0, 1, -1, 0, 1};
ll kx8[] = {1, 1, 2, 2, -1, -1, -2, -2};
ll ky8[] = {2, -2, 1, -1, 2, -2, 1, -1};
/* for Random Number generate
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
*/
///**
template < typename F, typename S >ostream& operator << ( ostream& os, const pair< F, S > & p ) {return os << "(" << p.first << ", " << p.second << ")";}
template < typename T >ostream &operator << ( ostream & os, const vector< T > &v ) {os << "{"; for (auto it = v.begin(); it != v.end(); ++it) {if ( it != v.begin() ) os << ", "; os << *it;} return os << "}";}
template < typename T >ostream &operator << ( ostream & os, const set< T > &v ) {os << "["; for (auto it = v.begin(); it != v.end(); ++it) {if ( it != v.begin()) os << ", "; os << *it;} return os << "]";}
template < typename F, typename S >ostream &operator << ( ostream & os, const map< F, S > &v ) {os << "["; for (auto it = v.begin(); it != v.end(); ++it) {if ( it != v.begin() ) os << ", "; os << it -> first << " = " << it -> second ;} return os << "]";}
#define dbg(args...) do {cerr << #args << " : "; faltu(args); } while(0)
clock_t tStart = clock();
#define timeStamp dbg("Execution Time: ", (double)(clock() - tStart)/CLOCKS_PER_SEC)
void faltu () { cerr << endl; }
template <typename T>void faltu( T a[], ll n ) {for (ll i = 0; i < n; ++i) cerr << a[i] << ' '; cerr << endl;}
template <typename T, typename ... hello>
void faltu( T arg, const hello &... rest) { cerr << arg << ' '; faltu(rest...); }

// Program showing a policy-based data structure.
#include <ext/pb_ds/assoc_container.hpp> // Common file 
#include <ext/pb_ds/tree_policy.hpp>
#include <functional> // for less 
using namespace __gnu_pbds;

// GNU link : https://goo.gl/WVDL6g
typedef tree<ll, null_type, less_equal<ll>, rb_tree_tag,
        tree_order_statistics_node_update>
        new_data_set;
// find_by_order(k) – ফাংশনটি kth ordered element এর একটা পয়েন্টার রিটার্ন করে। অর্থাৎ তুমি চাইলেই kth ইন্ডেক্সে কি আছে, সেটা জেনে ফেলতে পারছো!
// order_of_key(x) – ফাংশনটি x এলিমেন্টটা কোন পজিশনে আছে সেটা বলে দেয়।
//*//**___________________________________________________**/
const ll N = 1000006;

ll n;
struct Matrix {
  //dbg(n);
  vector<vector<ll>> a = vector<vector<ll>>(n, vector<ll>(n));

  Matrix operator *(Matrix other) {
    Matrix product = Matrix();
    vector<vector<ll>>tm(n, vector<ll>(n));
    for (ll i = 0; i < n; i++) {
      for (ll j = 0; j < n; j++) {
        for (ll k = 0; k < n; k++) {
          tm[i][k] = (tm[i][k] + (ll)a[i][j] * other.a[j][k]);
          if (tm[i][k] >= 8ll * mod * mod)
            tm[i][k] %= mod;
        }
      }
    }
    for (ll i = 0; i < n; i++)
      for (ll j = 0; j < n; j++)product.a[i][j] = (tm[i][j] % mod);
    return product;
  }
};
Matrix expo_power(Matrix a, ll K) {
  Matrix product;
  for (ll i = 0; i < n; i++)product.a[i][i] = 1;
  while (K > 0) {
    if (K % 2) {
      product = product * a;
    }
    K /= 2;
    a = a * a;
  }
  return product;
}

int main()
{
  FASTIO
  /*
#ifndef ONLINE_JUDGE
  freopen("in.txt", "r", stdin);
  freopen("out.txt", "w", stdout);
  freopen("error.txt", "w", stderr);
#endif
//*/
  ll m;
  ll k;
  cin >> n >> k;
  //dbg(n,m,k);
  Matrix Ank;
  for (ll i = 0; i < n; i++) {
    for (ll j = 0; j < n; j++) {
      ll x;
      cin >> x;
      Ank.a[i][j] = x;
    }
  }
  Matrix ans = expo_power(Ank, k);

  ll answer = 0;
  for (ll i = 0; i < n; i++) {
    for (ll j = 0; j < n; j++) {
      answer = modAdd(answer, ans.a[i][j]);
    }
  }
  cout << answer << "\n";
  return 0;
}

Measured memory_bytes: 3780