import sys
from math import log
class Combination:
    def __init__(self, n_max):
        # O(n_max + log(mod))
        f = 0
        self.fac = fac = [f]
        for i in range(1, n_max+1):
            f += log(i)
            fac.append(f)

    def __call__(self, n, r):
        if not 0 <= r <= n: return 0
        return self.fac[n] - self.fac[r] - self.fac[n-r]

def main():
    comb = Combination(101010)
    Q = int(sys.stdin.buffer.readline())
    m = map(int, sys.stdin.buffer.read().split())
    Ans = []
    for N, M, K in zip(m, m, m):
        if comb(N, K) < log(M) * (K-1) + log(N-K+1):
            Ans.append("Flush")
        else:
            Ans.append("Straight")
    print("\n".join(Ans))

main()