input = """.......S.......
...............
.......^.......
...............
......^.^......
...............
.....^.^.^.....
...............
....^.^...^....
...............
...^.^...^.^...
...............
..^...^.....^..
...............
.^.^.^.^.^...^.
..............."""

# with open("input.txt", "r") as file:
#     input = file.read()


start = [row.find("S") for row in input.splitlines()][0]

temp = [list(map(str, row)) for row in input.splitlines()]
list_temp = [[] for _ in range(len(input.splitlines()))]
for i, row in enumerate(temp[1:]):
    for ii, r in enumerate(row):
        if r == "^":
            list_temp[i+1].append(ii)

print(list_temp)
for i, *row in enumerate(zip(temp, list_temp)):
    print(i-1, temp[i-1], "прошлая строка")
    print(i, row[0][0], "сейчас", row[0][1])
    if i == 0:
        if temp[i+1][start] != "^":
            temp[i+1][start] = "|"
    else:
        if row[0][1]:
            print(f"строка {i}, {row[0][1]}")
            for y in row[0][1]:
                temp[i][y-1] = "|"
                temp[i][y+1] = "|"
        elif "^" not in row[0][0] and row[0][1] == []:
            for ii, y in enumerate(row[0][0]):
                if temp[i-1][ii] == "|":
                    temp[i][ii] = "|"
        for iii, y in enumerate(row[0][0]):
            if temp[i-1][iii] == "|" and temp[i][iii] != "^":
                temp[i][iii] = "|"
            
    print("="*100)
    


count = 0
for i, row in enumerate(temp):
    print(row)
    count += sum(1 for y, r in enumerate(row) if r == "^" and temp[i-1][y] == "|")  
print(count)