#include <bits/stdc++.h>
using namespace std;

#ifdef _RUTHEN
#include "debug.hpp"
#else
#define show(...) true
#endif

vector<bool> Era(int n) {
    vector<bool> isprime(n + 1, 1);
    isprime[0] = 0;
    isprime[1] = 0;
    for (int i = 2; i < n + 1; i++) {
        if (isprime[i]) {
            for (int j = 2 * i; j < n + 1; j += i) isprime[j] = 0;
        }
    }
    return isprime;
}

#include <atcoder/twosat>

using ll = long long;
#define rep(i, n) for (int i = 0; i < (n); i++)
template <class T> using V = vector<T>;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    auto era = Era(1000000);
    int N;
    cin >> N;
    V<string> A(N), B(N);
    rep(i, N) cin >> A[i] >> B[i];
    atcoder::two_sat ts(2 * N);
    rep(i, N) ts.add_clause(i, true, i + N, true);
    rep(i, N) ts.add_clause(i, false, i + N, false);
    rep(i, N) {
        rep(j, i) {
            if (era[stoi(A[i] + A[j])]) ts.add_clause(i, false, j, true);
            if (era[stoi(A[i] + B[j])]) ts.add_clause(i, false, j + N, true);
            if (era[stoi(B[i] + A[j])]) ts.add_clause(i + N, false, j, true);
            if (era[stoi(B[i] + B[j])]) ts.add_clause(i + N, false, j + N, true);
            if (era[stoi(A[j] + A[i])]) ts.add_clause(j, false, i, true);
            if (era[stoi(A[j] + B[i])]) ts.add_clause(j, false, i + N, true);
            if (era[stoi(B[j] + A[i])]) ts.add_clause(j + N, false, i, true);
            if (era[stoi(B[j] + B[i])]) ts.add_clause(j + N, false, i + N, true);
        }
    }
    cout << (ts.satisfiable() ? "Yes" : "No") << '\n';
    return 0;
}