Hello world

#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
string str[8]  = {"        HH    HH    EEEEEEEE    LL          LL           OOOOOO             WW     WW     OOOOOO     RRRRRRR     LL          DDDDDDD                                       "
                , "        HH    HH    EEEEEEEE    LL          LL          OOOOOOOO            WW     WW    OOOOOOOO    RRRRRRRR    LL          DDDDDDDD                                      "
                , "        HH    HH    EE          LL          LL          OO    OO            WW     WW    OO    OO    RR    RR    LL          DD    DD                                      "
                , "        HHHHHHHH    EEEEEEEE    LL          LL          OO    OO            WW     WW    OO    OO    RR    RR    LL          DD    DD                                      "
                , "        HHHHHHHH    EEEEEEEE    LL          LL          OO    OO            WW  W  WW    OO    OO    RRRRRRR     LL          DD    DD                                      "
                , "        HH    HH    EE          LL          LL          OO    OO            WW WWW WW    OO    OO    RRRRRR      LL          DD    DD                                      "
                , "        HH    HH    EEEEEEEE    LLLLLLLL    LLLLLLLL    OOOOOOOO            WWWW WWWW    OOOOOOOO    RR   RR     LLLLLLLL    DDDDDDDD                                      "
                , "        HH    HH    EEEEEEEE    LLLLLLLL    LLLLLLLL     OOOOOO             WW     WW     OOOOOO     RR    RR    LLLLLLLL    DDDDDDD                                       "
                };

int const cs = 20;
int const dl = 8e7;
int countt = 1e9;


  void ClearScreen()
    {
    int n;
    for (n = 0; n < 10; n++)
      printf( "\n\n\n\n\n\n\n\n\n\n" );
    }

int main()
{
    ll c = 0;

    do{
        for(int i = 0 ; i < 8 ; i ++){

            cout << str[i].substr(c,171 - c) + str[i].substr(0,c) << endl;

        }

        //delay
        for(int j = 0 ; j <= dl ; j ++){}

        //clear screen
        for(int j = 0 ; j < cs ; j ++){
            cout << endl;
        }

        c += 10;
        c %= 171;
    }while(--countt);

    return 0;
}