#!/usr/bin/env python
# 2025 - Advent Of Code 6 part 2

# file = 'input_example.txt'
file = 'input.txt'

# pylint: disable=consider-using-with
input_lines = [list(line.strip('\n')) for line in open(file, encoding="utf-8")]
MAX_X = len(input_lines[0])
MAX_Y = len(input_lines)

# for y in range(0, MAX_Y):
#     for x in range(0, MAX_X):
#         print(input_lines[y][x], end='')
#     print()

grand_total = 0
operands = []
for c in range(len(input_lines[0]) - 1, -1, -1):
    res_add = 0
    res_mul = 1
    num = []
    for l in range(0, MAX_Y - 1):
        if input_lines[l][c] != ' ':
            num.append(input_lines[l][c])
    if num:
        # print(f'appending {"".join(num)} to operands')
        operands.append(int("".join(num)))
        if input_lines[l+1][c] == '+':
            grand_total += sum(operands)
            # print(f'adding {sum(operands)}')
            operands = []
        elif input_lines[l+1][c] == '*':
            total = 1
            for x in operands:
                total *= x
            grand_total += total
            # print(f'adding {sum(operands)}')
            operands = []

print(f'{grand_total=}')