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

#define Dv(v) for (auto x : v) cerr << x << ' '; cerr << endl;
#define D(x) cerr << #x << " = " << x << ", "

using ll = long long;
using vi = vector<int>;
using vvi = vector<vi>;

ll dist(ll x1, ll y1, ll x2, ll y2) {
    return (x1-x2)*(x1-x2) + (y1-y2)*(y1-y2);
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    int n; cin >> n;
    vi x(n), y(n), r(n);
    for(int i = 0; i < n; ++i)
        cin >> x[i] >> y[i] >> r[i];
    
    vvi edges(n);
    for(int i = 0; i < n; ++i)
        for(int j = i+1; j < n; ++j)
            if(dist(x[i], y[i], x[j], y[j]) == (r[i]+r[j])*(r[i]+r[j]) )
                edges[i].push_back(j), edges[j].push_back(i);
    
    vi color(n, -1);
    for(int i = 0; i < n; ++i)
        if(color[i] == -1) {
            color[i] = 0;
            int siz = 1;
            stack<int> s;
            s.push(i);
            bool bip = true;
            while(not s.empty()) {
                int curr = s.top();
                s.pop();
                for(int j: edges[curr]) {
                    bip &= color[curr] != color[j];
                    if(color[j] == -1) {
                        color[j] = !color[curr];
                        s.push(j);
                        siz++;
                    }
                }
            }
            if(bip and siz%2 == 1) {
                cout << "YES" << endl;
                return 0;
            }
        }
    cout << "NO" << endl;
}