E.py

import sys
from collections import defaultdict
t=sys.stdin.readline()
l=[]
 
while t:
	l.append(t.strip())
	t = sys.stdin.readline()

l = l[1:]

coins = 0
for counts in l:
	if len(counts.split()) > 1:
		coins += 1
		h=0
		t=0
		for letter in counts.split():
			if letter == 'H':
				h+=1
			elif letter == 'T':
				t+=1
		if h==t:
			print("Coin " + str(coins) + " is fair.")
		else:
			print("Coin " + str(coins) + " is not fair.")