SAMPLE = [
#Time:	Distance:
(7,	9),
(15,	40),
(30,	200),

]

INPUT = [
(40,	219),
(81,	1012),
(77,	1365),
(72,	1089),
]


L = SAMPLE
L=INPUT
R = 1
for (t,r) in L:  # time, record
	S = 0
	for i in range(t):  # hold for i
		v = i # speed in m/s
		d = v * (t-i)
		if d > r:
			S += 1
	print(S)
	R *= S
print(R)