#include<bits/stdc++.h>
using namespace std;
#define int long long
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define pb push_back
#define sz(x) (int)(x.size())
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
#define vi vector<int>
#define vp vector<pii>
#define vvi vector<vi>
#define ykh mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count())
#define __lg(x) 63-__builtin_clzll(x)
#define pow2(x) (1LL<<x)
void __print(int x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}
template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifdef local
void CHECK();
void setio(){
freopen("/Users/iantsai/cpp/input.txt","r",stdin);
freopen("/Users/iantsai/cpp/output.txt","w",stdout);
}
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
void setio(){}
#define debug(x...)
#endif
#define TOI_is_so_de ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);setio();
const int mxn = 3e4 + 5;
int n, k, sum = 0, cur = 0;
multiset<pii>adj[mxn];
bool vis[mxn];
void solve(){
cin >> n >> k;
for(int i = 1; i <= 2 * n; i++){
int l, r, s;
cin >> l >> r >> s;
r += n;
adj[l].insert({r, s});
adj[r].insert({l, -s});
}
queue<int>q;
for(int i = 1; i <= 2 * n; i++){
if(sz(adj[i]) == 0){
cout << "NO\n";
return;
}
else if(sz(adj[i]) == 1){
q.push(i);
}
}
while(sz(q)){
auto v = q.front();
q.pop();
vis[v] = 1;
auto [u, c] = *adj[v].begin();
cur += c;
adj[u].erase(adj[u].find({v, -c}));
adj[v].clear();
if(sz(adj[u]) == 1) q.push(u);
}
vector<int>val;
val.pb(abs(cur));
bitset<mxn * 40>bs;
for(int i = 1; i <= 2 * n; i++){
if(vis[i]) continue;
cur = 0;
int v = i;
adj[i].erase(adj[i].begin());
vis[v] = 1;
do{
auto [u, c] = *adj[v].begin();
vis[u] = 1;
adj[v].erase(adj[v].begin());
cur += c;
debug(cur);
if(u != i)adj[u].erase(adj[u].find({v, -c}));
v = u;
}while(v != i);
val.pb(abs(cur));
}
bs[0] = 1;
debug(val);
for(auto x : val){
bs |= bs << x;
sum += x;
}
for(int i = 0; i <= sum; i++){
//debug(i, (bool)bs[i]);
if(bs[i] and abs(sum - 2 * i) <= k){
cout << "YES\n";
return;
}
}
cout <<"NO\n";
return ;
}
signed main(){
TOI_is_so_de;
int t = 1;
//cin >> t;
while(t--){
solve();
}
#ifdef local
CHECK();
#endif
}
/*
input:
*/
#ifdef local
void CHECK(){
cerr << "\n[Time]: " << 1000.0 * clock() / CLOCKS_PER_SEC << " ms.\n";
function<bool(string,string)> compareFiles = [](string p1, string p2)->bool {
std::ifstream file1(p1);
std::ifstream file2(p2);
if(!file1.is_open() || !file2.is_open()) return false;
std::string line1, line2;
while (getline(file1, line1) && getline(file2, line2)) {
if (line1 != line2)return false;
}
int cnta = 0, cntb = 0;
while(getline(file1,line1))cnta++;
while(getline(file2,line2))cntb++;
return cntb - cnta <= 1;
};
bool check = compareFiles("output.txt","expected.txt");
if(check) cerr<<"ACCEPTED\n";
else cerr<<"WRONG ANSWER!\n";
}
#else
#endif
