#include <iostream>
#include <set>
#include <string>
#include <vector>
#include <algorithm>
#include <chrono>
#include <cmath>
#include <iomanip>
#include <stack>
#include <queue>
#include <deque>
#include <utility>
#include <map>
#include<cctype>
 
 
using namespace std;
 
 
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    string s;
    cin>>s;
 
    for(int i=0;i<s.size();i++) {
        s[i] = tolower(s[i]);
    }
    if (s == "nucpa") {
        cout<<"Yes";
    }else
        cout<<"No";
}

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