#!/usr/bin/env python3

count = 0
x = 0
y = 0
visited = {}

MOTION = {
    "^": [0, -1],
    "<": [-1, 0],
    "v": [0, 1],
    ">": [1, 0]
}

def move(char):
    global x
    global y
    motion = MOTION[char]
    x += motion[0]
    y += motion[1]
    visit(x, y)

def visit(x, y):
    global count
    if (x, y) not in visited:
        visited[(x, y)] = 1
        count += 1

visit(x, y)
with open("./data/input", "r") as f:
    for line in f:
        for char in line:
            move(char)
print(count)