#include <bits/stdc++.h> using namespace std; #define rep(i, n) for (ll i = 0; i < (ll)(n); i++) #define rep2(i, s, n) for (ll i = s; i <= (ll)(n); i++) #define rep3(i, s, n, d) for (ll i = s; i <= (ll)(n); i += d) #define rep4(i, s, n, d) for (ll i = s; i >= (ll)(n); i += d) typedef long long ll; typedef long double ld; typedef unsigned long long ull; typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<vvi> vvvi; typedef vector<string> vs; typedef vector<vs> vvs; typedef vector<vvs> vvvs; typedef vector<char> vc; typedef vector<vc> vvc; typedef vector<vvc> vvvc; typedef vector<ll> vll; typedef vector<vll> vvll; typedef vector<vvll> vvvll; typedef vector<vvvll> vvvvll; typedef vector<double> vd; typedef vector<vd> vvd; typedef vector<vvd> vvvd; typedef vector<ld> vld; typedef vector<vld> vvld; typedef vector<vvld> vvvld; typedef vector<bool> vb; typedef vector<vd> vvb; typedef vector<vvd> vvvb; typedef vector<pair<int, int>> vpi; typedef vector<pair<ll, ll>> vpll; typedef priority_queue<int, vector<int>, greater<int>> pqi; typedef priority_queue<vi, vector<vi>, greater<vi>> pqvi; typedef priority_queue<ll, vector<ll>, greater<ll>> pqll; typedef priority_queue<vll, vector<vll>, greater<vll>> pqvll; typedef priority_queue<int, vector<int>, less<int>> rpqi; typedef priority_queue<vi, vector<vi>, less<vi>> rpqvi; typedef pair<int, int> P; #define yes(ans) if(ans)cout << "yes"<< endl; else cout << "no" << endl #define Yes(ans) if(ans)cout << "Yes"<< endl; else cout << "No" << endl #define YES(ans) if(ans)cout << "YES"<< endl ;else cout << "NO" << endl #define printv(vec) {rep(i, vec.size()) cout << vec[i] << ' '; cout << endl;} #define printvv(vec) rep(i, vec.size()) {rep(j, vec[i].size()) cout << vec[i][j] << ' '; cout << endl;}; #define printvvv(vec) rep(i, vec.size()) { rep(j, vec[i].size()) { rep(k, vec[i][j].size()) cout << vec[i][j][k] << ' '; cout << " "; }cout << endl; }; #define all1(x) x.begin(),x.end() #define all2(x) x.rbegin(), x.rend() #define so(x) sort(all1(x)) #define re(x) reverse(all1(x)) #define rso(x) sort(all2(x)) #define vco(x, a) count(all1(x), a) #define per(x) next_permutation(all1(x)) #define iINF 2147483647 #define llINF 9223372036854775807 #define INF 1000000000000000000 #define mod 998244353 #define mod2 1000000007 int main() { string a, p, q; cin >> a >> p >> q; Yes(p != q); }