#include <iostream>

using namespace std;

int main()
{
    int n,m,a,x,k,b;
    cin>>n;
    x=20;
    m=4;
    b=0;
    k=x+10;
    cin>>a;
    x+=a;


    m-=1;
    n-=1;
    while(n>0)
    {
        if(x>=k)
        {
            m=4;
            k=x+10;
        }


        if(m==0)
        {
            b=0;
            break;

        }
        if(x<1)
        {
            cout<<"Safety"<<endl;
            b=1;
            break;
        }
        if(x>=100)
        {
            cout<<"Touchdown"<<endl;
            b=1;
            break;
        }
        cin>>a;
        x+=a;


        m-=1;
        n-=1;
    }
    if(x==100 && b==0)
    {
        cout<<"Touchdown"<<endl;
        b=1;

    }
    if(x<1 && b==0)
    {
        cout<<"Safety"<<endl;
        b=1;
    }
    if(b==0)
    {
        cout<<"Nothing"<<endl;
    }


    return 0;
}