#include <iostream>
#include <cstring>
using namespace std;

int main()
{
    char N[7][4]={"DO","RE","MI","FA","SOL","LA","SI"};
    char s[101];
    int gasit=0;
    cin.getline(s,101);
    char *p=strtok(s," ");
    while(p)
    {
        int ok=0;
        for(int i=0;i<7;i++)
            if(strstr(p,N[i]))
                ok=1;
        if(ok)
        {
            cout<<p<<endl;
            gasit=1;
        }
        p=strtok(NULL," ");
    }
    if(!gasit) cout<<"nu exista";
    return 0;
}