numbers = []
for i in range(20):
numbers.append(int(input()))
biggest_numbers = 0
for i in range(19):
if i == 0:
if numbers[i] > numbers[i + 1]:
biggest_numbers += 1
elif i == 19:
if numbers[i] > numbers[i - 1]:
else:
if numbers[i - 1] < numbers[i] > numbers[i + 1]:
print(biggest_numbers)
numbers = []
for i in range(20):
numbers.append(int(input()))
biggest_numbers = 0
for i in range(19):
if i == 0:
if numbers[i] > numbers[i + 1]:
biggest_numbers += 1
elif i == 19:
if numbers[i] > numbers[i - 1]:
biggest_numbers += 1
else:
if numbers[i - 1] < numbers[i] > numbers[i + 1]:
biggest_numbers += 1
print(biggest_numbers)