#include <bits/stdc++.h>
using namespace std;
const int MAX = 1000000;
struct strongly_connected_components{
	vector<vector<int>> ans;
	vector<int> scc;
	void dfs1(vector<vector<int>> &E, vector<int> &t, vector<bool> &used, int v){
		for (int w : E[v]){
			if (!used[w]){
				used[w] = true;
				dfs1(E, t, used, w);
			}
		}
		t.push_back(v);
	}
	void dfs2(vector<vector<int>> &E2, vector<bool> &used2, int v){
		ans.back().push_back(v);
		for (int w : E2[v]){
			if (!used2[w]){
				used2[w] = true;
				dfs2(E2, used2, w);
			}
		}
	}
	strongly_connected_components(vector<vector<int>> &E){
		int N = E.size();
		vector<vector<int>> E2(N);
		for (int i = 0; i < N; i++){
			for (int j : E[i]){
				E2[j].push_back(i);
			}
		}
		vector<int> t;
		vector<bool> used(N, false);
		for (int i = 0; i < N; i++){
			if (!used[i]){
				used[i] = true;
				dfs1(E, t, used, i);
			}
		}
		reverse(t.begin(), t.end());
		vector<bool> used2(N, false);
		scc = vector<int>(N);
		int cnt = 0;
		for (int i = 0; i < N; i++){
			if (!used2[t[i]]){
				used2[t[i]] = true;
				ans.push_back(vector<int>());
				dfs2(E2, used2, t[i]);
				for (int j : ans.back()){
					scc[j] = cnt;
				}
				cnt++;
			}
		}
	}
	int operator [](int k){
		return scc[k];
	}
	int size(){
		return ans.size();
	}
};
int con(int A, int B){
  return stoi(to_string(A) + to_string(B));
}
int main(){
  int N;
  cin >> N;
  vector<int> A(N), B(N);
  for (int i = 0; i < N; i++){
    cin >> A[i] >> B[i];
  }
  vector<bool> prime(MAX, true);
  for (int i = 2; i < MAX; i++){
    if (prime[i]){
      for (int j = i * 2; j < MAX; j += i){
        prime[j] = false;
      }
    }
  }
  vector<vector<int>> E(N * 2);
  for (int i = 0; i < N; i++){
    if (prime[con(A[i], B[i])]){
      E[i].push_back(N + i);
    }
    if (prime[con(B[i], A[i])]){
      E[N + i].push_back(i);
    }
  }
  for (int i = 0; i < N; i++){
    for (int j = 0; j < N; j++){
      if (i != j){
        if (prime[con(A[i], A[j])]){
          E[i].push_back(j);
          E[N + j].push_back(N + i);
        }
        if (prime[con(A[i], B[j])]){
          E[i].push_back(N + j);
          E[j].push_back(N + i);
        }
        if (prime[con(B[i], A[j])]){
          E[N + i].push_back(j);
          E[N + j].push_back(i);
        }
        if (prime[con(B[i], B[j])]){
          E[N + i].push_back(N + j);
          E[j].push_back(i);
        }
      }
    }
  }
  strongly_connected_components G(E);
  bool ok = true;
  for (int i = 0; i < N; i++){
    if (G[i] == G[N + i]){
      ok = false;
    }
  }
  if (ok){
    cout << "Yes" << endl;
  } else {
    cout << "No" << endl;
  }
}