21 lines
729 B
Python
21 lines
729 B
Python
|
import re
|
||
|
|
|
||
|
|
text: str
|
||
|
|
|
||
|
|
with open("input.txt") as f:
|
||
|
|
text = f.read()
|
||
|
|
|
||
|
|
lines: list[str] = text.splitlines()
|
||
|
|
|
||
|
|
total: int = 0
|
||
|
|
|
||
|
|
for line1, line2, line3 in zip(lines[0:-2], lines[1:-1], lines[2:]):
|
||
|
|
for i in range(0, len(line1) - 2):
|
||
|
|
if (line2[i + 1] == "A"):
|
||
|
|
total += (line1[i] == "M" and line3[i] == "M" and line1[i + 2] == "S" and line3[i + 2] == "S")
|
||
|
|
total += (line1[i] == "M" and line3[i] == "S" and line1[i + 2] == "M" and line3[i + 2] == "S")
|
||
|
|
total += (line1[i] == "S" and line3[i] == "S" and line1[i + 2] == "M" and line3[i + 2] == "M")
|
||
|
|
total += (line1[i] == "S" and line3[i] == "M" and line1[i + 2] == "S" and line3[i + 2] == "M")
|
||
|
|
|
||
|
|
|
||
|
|
print(total)
|