#include<iostream> #include<cstring> using namespace std; int main() { char a[11501]; char b[11501] = {'h','e','l','o'} ; cin >> a; int count = 0; for(int i=0;a[i] != '\0';i++){ if(a[i] == b[count]){ count++; } if(count == 5){ cout << "YES"; }else{ cout << "No"; } } }