/**
____ ____ ____ ____ ____
||a |||t |||o |||d |||o ||
||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|
**/
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N_MAX = 1000000;
int N;
int A[N_MAX];
int B[N_MAX];
int main () {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin >> N;
for (int i = 0; i < N; i++) {
cin >> A[i] >> B[i];
}
bool all0 = true;
for (int i = 0; i < N; i++) {
if (A[i] != 0 || B[i] != 0) {
all0 = false;
}
}
if (all0 == true) {
cout << "Yes\n";
return 0;
}
while (true) {
bool complete = true;
for (int i = 0; i < N; i++) {
if (A[i] > B[i]) {
int x = (A[i] - B[i] + 1) / 2;
A[i] -= x * 2;
A[(i + 1) % N] += x;
if (x > 0) {
complete = false;
}
}
}
if (complete == true) {
break;
}
}
bool answer = false;
for (int i = 0; i < N; i++) {
if (B[i] > 0) {
answer = true;
}
}
for (int i = 0; i < N; i++) {
if (A[i] != B[i]) {
answer = false;
}
}
cout << (answer ? "Yes" : "No") << "\n";
return 0;
}
