Note

#include <iostream>
#include <cstring>
using namespace std;
char sir[101],*p;
bool ok;

int main()
{
    cin.get(sir,101);
    p=strtok(sir," ");
    while(p)
    {
        if(strstr(p,"DO")||strstr(p,"RE")||strstr(p,"MI")||strstr(p,"FA")||strstr(p,"SOL")||strstr(p,"LA")||strstr(p,"SI"))
            cout<<p<<'\n',ok=true;
        p=strtok(NULL," ");
    }
    if(!ok)
        cout<<"nu exista";
    return 0;
}