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

#define REP(i,n) for(ll i=0;i<(ll)n;i++)
#define dump(x)  cerr << "Line " << __LINE__ << ": " <<  #x << " = " << (x) << "\n";
#define spa << " " <<
#define fi first
#define se second
#define ALL(a)  (a).begin(),(a).end()
#define ALLR(a)  (a).rbegin(),(a).rend()

using ld = long double;
using ll = long long;
using ull = unsigned long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using pdd = pair<ld, ld>;

template<typename T> using V = vector<T>;
template<typename T> using P = pair<T, T>;
template<typename T> vector<T> make_vec(size_t n, T a) { return vector<T>(n, a); }
template<typename... Ts> auto make_vec(size_t n, Ts... ts) { return vector<decltype(make_vec(ts...))>(n, make_vec(ts...)); }
template<class S, class T> ostream& operator << (ostream& os, const pair<S, T> v){os << "(" << v.first << ", " << v.second << ")"; return os;}
template<typename T> ostream& operator<<(ostream &os, const vector<T> &v) { for (auto &e : v) os << e << ' '; return os; }
template<class T> ostream& operator<<(ostream& os, const vector<vector<T>> &v){ for(auto &e : v){os << e << "\n";} return os;}
struct fast_ios { fast_ios(){ cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_;

template <class T> void UNIQUE(vector<T> &x) {sort(ALL(x));x.erase(unique(ALL(x)), x.end());}
template<class T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T> bool chmin(T &a, const T &b) { if (a>b) { a=b; return 1; } return 0; }
void fail() { cout << -1 << '\n'; exit(0); }
inline int popcount(const int x) { return __builtin_popcount(x); }
inline int popcount(const ll x) { return __builtin_popcountll(x); }
template<typename T> void debug(vector<vector<T>>&v,ll h,ll w){for(ll i=0;i<h;i++)
{cerr<<v[i][0];for(ll j=1;j<w;j++)cerr spa v[i][j];cerr<<"\n";}};
template<typename T> void debug(vector<T>&v,ll n){if(n!=0)cerr<<v[0];
for(ll i=1;i<n;i++)cerr spa v[i];
cerr<<"\n";};

const ll INF = (1ll<<62);
// const ld EPS   = 1e-10;
// const ld PI    = acos(-1.0);
const ll mod = (int)1e9 + 7;
//const ll mod = 998244353;

int main(){

    ll N, D;
    cin >> N >> D;
    V<V<ll>> X(N, V<ll>(2, 0));
    REP(i, N) cin >> X[i][0] >> X[i][1];

    two_sat ts(N);
    auto dist = [](ll x, ll y){return abs(x-y);};

    REP(i, N){
        REP(j, N){
            if(i<j){
                REP(k, 2){
                    if(dist(X[i][k], X[j][0])<D){
                        if(dist(X[i][k], X[j][1])<D){
                            ts.add_clause(i, 1-k, i, 1-k);
                        }else{
                            ts.add_clause(i, 1-k, j, 1);
                        }
                    }else{
                        if(dist(X[i][k], X[j][1])<D){
                            ts.add_clause(i, 1-k, j, 0);
                        }else{
                            1;
                        }
                    }
                }
            }
        }
    }

    auto ok = ts.satisfiable();

    if(ok){
        cout << "Yes\n";
        auto res = ts.answer();
        REP(i, N){
            cout << X[i][res[i]] << endl;
        }
    }else{
        cout << "No\n";
    }

    return 0;
}

Measured memory_bytes: 3772