#include <iostream> #include <string> using namespace std; int main(){ char a[100000],b[6]="hello"; int m=0,n=0; cin>>a; for(int i=0;a[i]!='\0';i++){ if(a[i]==b[n]){ n++; if(b[n]=='o'){ cout<<"yes"; return 0; } } } cout<<"no"; return 0; }