B.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]
print(l)

for climb in l:
	var = climb.split(" ")
	n = int(var[0])
	u = int(var[1])
	d = int(var[2])

	total = 0
	mins = 0
	while total < n:
		mins += 1
		total += u

		if total >= n:
			break
		
		mins += 1
		total -= d

	print(mins)