Hiba Thanseem Basicfeed

## brick_wall.py
from collections import deque

# Function to expand input like "3R1D" into ['R','R','R','D']
def expand_row(row_str):
    result = []
    i = 0
    while i < len(row_str):
        # Get number
        num = 0
        while i < len(row_str) and row_str[i].isdigit():
	from collections import deque

	# Function to expand input like "3R1D" into ['R','R','R','D']
	def expand_row(row_str):
	result = []
	i = 0
	while i < len(row_str):
	# Get number
	num = 0
	while i < len(row_str) and row_str[i].isdigit():