#!/usr/bin/env python
visited_houses_human = []
current_house_human = (0, 0)
visited_houses_robot = []
current_house_robot = (0, 0)
count = 0

with open("inputd3.txt", "r") as f:
	for input in f:
		for x in input:
			if x == "^" and count % 2 == 0:
				current_house_human = (current_house_human[0] - 1, current_house_human[1])
			elif x == "^" and count % 2 == 1:
				current_house_robot = (current_house_robot[0] - 1, current_house_robot[1])

			elif x == "v" and count % 2 == 0:
				current_house_human = (current_house_human[0] + 1, current_house_human[1])
			elif x == "v" and count % 2 == 1:
				current_house_robot = (current_house_robot[0] + 1, current_house_robot[1])

			elif x == ">" and count % 2 == 0:
				current_house_human = (current_house_human[0], current_house_human[1] + 1)
			elif x == ">" and count % 2 == 1:
				current_house_robot = (current_house_robot[0], current_house_robot[1] + 1)

			elif x == "<" and count % 2 == 0:
				current_house_human = (current_house_human[0], current_house_human[1] - 1)
			else:
				current_house_robot = (current_house_robot[0], current_house_robot[1] - 1)

			if count % 2 == 0:
				visited_houses_human.append(current_house_human)
			else:
				visited_houses_robot.append(current_house_robot)

			count += 1

print(len(set(visited_houses_human + visited_houses_robot)))