import math
import sys

def main():
    input = sys.stdin.read().split()
    Q = int(input[0])
    idx = 1
    for _ in range(Q):
        N = int(input[idx])
        M = int(input[idx+1])
        K = int(input[idx+2])
        idx +=3
        
        if K == 1:
            print("Flush" if 1 < 1 else "Straight")  # Unreachable due to problem constraints
            continue
        
        a = N - K + 2
        
        # Compute sum1: sum_{x=a}^N ln(x) ≈ integral from a-1 to N of ln(x) dx
        if a > N:
            sum1 = 0.0
        else:
            x_upper = N + 1
            integral_upper = x_upper * math.log(x_upper) - x_upper
            x_lower = a - 1
            if x_lower < 1:
                x_lower = 1
                integral_lower = 0.0
            else:
                integral_lower = x_lower * math.log(x_lower) - x_lower
            sum1 = integral_upper - integral_lower
        
        # Compute sum2: ln(K!) using Stirling's approximation
        if K == 0:
            sum2 = 0.0
        else:
            sum2 = K * math.log(K) - K + 0.5 * math.log(2 * math.pi * K)
        
        left_part = sum1 - sum2
        threshold = left_part / (K - 1)
        ln_M = math.log(M)
        
        if ln_M > threshold:
            print("Flush")
        else:
            print("Straight")

if __name__ == "__main__":
    main()