#include <bits/stdc++.h>
#define int int64_t
using namespace std;
int N;
vector<array<int, 3>> v;
vector<int> adj[1100];
vector<bool> vis(1100, 0);
bool cycle(int pos, int start, int prec){
    if(pos==start && prec != -1)return 1;
    if(vis[pos])return 0;
    vis[pos]=1;
    bool a = 0;
    for(auto x:adj[pos]){
        if(x==prec)continue;
        a|=cycle(x, start, pos);
    }
    return a;
}
signed main(){
    ios_base::sync_with_stdio();
    cin.tie(0);
    cin>>N;
    for(int i=0;i<N;i++){
        int a, b, c;
        cin>>a>>b>>c;
        v.push_back({a, b, c});
    }
    for(int i=0;i<N;i++){
        for(int j=i+1;j<N;j++){
            auto [x, y, r]=v[i];
            auto [x1, y1, r1] = v[j];
            if((x-x1)*(x-x1)+(y-y1)*(y-y1)==(r+r1)*(r+r1)){
                adj[i].push_back(j);
                adj[j].push_back(i);
            }
        }
    }
    for(int i=0;i<N;i++){
        fill(vis.begin(), vis.end(), 0);
        if(cycle(i, i, -1))continue;
        if(adj[i].size()==1 && adj[adj[i][0]].size()==1)continue;
        cout<<"YES\n";
        return 0;
    }
    cout<<"NO\n";
}