#include <bits/stdc++.h>
#define pii pair <int, int>

using namespace std;

const long double eps = 1e-9;

int x[1001], y[1001];
int r[1001];
int viz[1001];

vector <int> v[1001];

bool ok;

long long dist(int i, int j)
{
    return (x[i] - x[j]) * (x[i] - x[j]) + (y[i] - y[j]) * (y[i] - y[j]);
}

int cnt1, cnt2;

void dfs(int nod)
{
    for(auto it:v[nod])
    {
        if(!viz[it])
        {
            viz[it] = 3 - viz[nod];
            if(viz[it] == 1)
                cnt1++;
            else
                cnt2++;
            dfs(it);
        }
        else if(viz[it] == viz[nod])
            ok = 0;
    }
}

void solve() {
    int n;
    cin >> n;
    for(int i = 1; i <= n; i++){
        cin >> x[i] >> y[i] >> r[i];
    }
    for(int i = 1; i <= n; i++)
        for(int j = i + 1; j <= n; j++)
            if(dist(i, j) == 1LL * (r[i] + r[j]) * (r[i] + r[j]))
            {
                v[i].push_back(j);
                v[j].push_back(i);
            }
    for(int i = 1; i <= n; i++)
        if(!viz[i])
        {
            ok = 1;
            cnt2 = 0;
            cnt1 = 1;
            viz[i] = 1;
            dfs(i);
            if(ok == 1 && cnt1 != cnt2)
            {
                cout << "YES";
                return;
            }
        }
    cout << "NO";
}

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

#ifdef LOCAL
    freopen("test.in", "r", stdin);
    freopen("test.out", "w", stdout);
#else

#endif
    int T = 1;
    //cin >> T;
    while(T--) {
        solve();
    }
    return 0;
}