import re

text: str

with open("input.txt") as f:
    text = f.read()

lines: list[str] = text.splitlines()

def search(values: list[list[str]], word: str, coord_x: int, coord_y: int, inc_x: int, inc_y: int):

    array_length = len(values)
    line_length = len(values[0])

    for i in range(len(word)):    
        x: int = coord_x + i * inc_x
        y: int = coord_y + i * inc_y
        if (x >= line_length or x < 0) or (y >= array_length or y < 0) or (values[y][x] != word[i]):
            return 0
    return 1

total: int = 0

directions = [(-1, -1), (0, -1), (+1, -1), (+1, 0), (+1, +1), (0, +1), (-1, +1), (-1, 0)]

for y, line in enumerate(lines):
    for x, c in enumerate(line):
        if (c == 'X'):
            for inc_x, inc_y in directions:
                total += search(lines, "XMAS", x, y, inc_x, inc_y)
                
print(total)