#!/usr/bin/env python
visited_houses = []
current_house = (0, 0)

with open("inputd3.txt", "r") as f:
	for input in f:
		for x in input:
			if x == "^":
				current_house = (current_house[0] - 1, current_house[1])
			elif x == "v":
				current_house = (current_house[0] + 1, current_house[1])
			elif x == ">":
				current_house = (current_house[0], current_house[1] + 1)
			else:
				current_house = (current_house[0], current_house[1] - 1)

			visited_houses.append(current_house)

print(len(set(visited_houses)))