#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#define ll long long
#define rep(i,n) for(ll i=0;i<(n);i++)
#define pll pair<ll,ll>
#define pii pair<int,int>
#define pq priority_queue
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define endl '\n'
#define ios ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define lb(c,x) distance(c.begin(),lower_bound(all(c),x))
#define ub(c,x) distance(c.begin(),upper_bound(all(c),x))

using namespace std;
const long double eps=1e-9;

int main(){
    ll q;
    cin >> q;
    while(q--){
        ll n,m,k;
        cin >> n >> m >> k;
        long double p=n;
        long double q=m;
        long double r=k;
        long double ans=1.0;
        bool flush=true;
        for(ll i=k-1;i>=1;i--){
            long double s=i;
            ans*=(p-(r-i))/(q*s);
            if(ans>r+eps){
                flush=false;
                break;
            }
        }
        if(flush) cout << "Flush" << endl;
        else cout << "Straight" << endl;
    }
    return 0;
}