import os

file_path = os.path.join(os.path.dirname(__file__), "./input.txt")
# file_path = os.path.join(os.path.dirname(__file__), "./test-input.txt")
input = open(file_path).read().strip()


def next_coordinates(current, symbol):
    if symbol == "^":
        return (current[0] - 1, current[1])
    if symbol == "v":
        return (current[0] + 1, current[1])
    if symbol == ">":
        return (current[0], current[1] + 1)
    if symbol == "<":
        return (current[0], current[1] - 1)


count = 0

visited = {(0, 0)}

santa_queue = []
robot_queue = []

for i, foo in enumerate(list(input)):
    if i % 2 == 0:
        santa_queue.append(foo)
    else:
        robot_queue.append(foo)


def deliver(queue):
    x = 0
    y = 0

    for dir in queue:
        next = next_coordinates((x, y), dir)
        visited.add(next)

        x = next[0]
        y = next[1]


deliver(santa_queue)
deliver(robot_queue)


print(len(visited))