#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<int,int> pii;
typedef vector<int> vii;
typedef vector<ll> vll;
typedef vector<pii> vpii;
typedef unordered_map<int,int> umap;
typedef long double ld;
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define popcount __builtin_popcount
#define case cout<<"Case "<<__testcase-testcase<<": ";
#define endl '\n'

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int testcase=1;
    //cin>>testcase;
    int __testcase=testcase;
    while(testcase--){
        string s[3];
        cin>>s[0]>>s[1]>>s[2];
        bool ind=0;
        if(s[0]!="bubble"&&s[0]!="tapioka")
        {
            ind=1;
            cout<<s[0]<<" ";
        }
        if(s[1]!="bubble"&&s[1]!="tapioka")
        {
            ind=1;
            cout<<s[1]<<" ";
        }
        if(s[2]!="bubble"&&s[2]!="tapioka")
        {
            ind=1;
            cout<<s[2]<<" ";
        }
        if(!ind)
            cout<<"nothing";
        cout<<endl;

    }
}