#include <iostream>
#include<vector>
#define int long long
using namespace std;
void p(int x, int n, vector<int> a, vector<int> b) {
a[n - 1] -= 2 * x, a[0] += x;
for (int i = n - 2; i >= 0; --i) a[i] -= (2 * (b[i + 1] - a[i + 1]));
for (int i = 0; i < n; ++i) if (a[i] > b[i]) return;
if (a[0] == b[0]) { cout << "Yes"; exit(0); }
}
int32_t main() {
ios_base::sync_with_stdio(false); cin.tie(NULL);
int n; cin >> n;
vector<int> a(n), b(n);
for (int i = 0; i < n; ++i)
cin >> a[i] >> b[i];
for (int x = 0; x < 100; ++x) p(x, n, a, b);
cout << "No";
}
