from io import open
import numpy

input=open('input.txt','r')
text=input.read().splitlines()
input.close()
del(input)

times = text[0]
distances = text[1]

times = [int(i) for i in times.split(':')[1].split() if i.isdigit()]
distances = [int(i) for i in distances.split(':')[1].split() if i.isdigit()]

moves=[]
wins=[]
for index,seconds in enumerate(times):
    wins.append(0)
    for time_hold in range(0,seconds+1):
        move=(time_hold*(seconds-time_hold))
        if move>distances[index]:
            wins[index]+=1

print("El resultado es: ",numpy.prod(wins))