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# UnboundLocalError in Dungeon Game

When I try to run the code, it's giving me Unbound Local Error, not sure why. Traceback (most recent call last):
File "dungeon.game.py", line 104, in <module>
game_loop()
File "dungeon.game.py", line 81, in game_loop
draw_map(player)
File "dungeon.game.py", line 74, in draw_map
print(output, end = line_end)
UnboundLocalError: local variable 'output' referenced before assignment

```import os
import random

# draw grid
#pick random location for player
# for player
#monster
#draw player in the grid
#take input for movment
#move player, unless incalid move(past edges of grid)
#check for win/loss
#clear screen and redraw grid

CELLS = [(0,0),(1,0),(2,0),(3,0),(4,0),
(0,1),(1,1),(2,1),(3,1),(4,1),
(0,2),(1,2),(2,2),(3,2),(4,2),
(0,3),(1,3),(2,3),(3,3),(4,3),
(0,4),(1,4),(2,4),(3,4),(4,4),]

def clear_screen():
os.system('cls'if os.name == 'nt'else 'clear')

def get_locations():
return random.sample(CELLS, 3)

def move_player(player,move):
x,y = player
if move == "LEFT":
x -= 1
if move == "RIGHT":
x += 1
if move == "UP":
y -= 1
if move == "DOWN":
y += 1
return x,y

def get_moves(player):
moves = ["LEFT","RIGHT","UP","DOWN"]
x,y = player
if x == 0:
moves.remove("LEFT")
if x == 4:
moves.remove("RIGHT")
if y == 0:
moves.remove("UP")
if y == 4:
moves.remove("DOWN")
return moves

def draw_map(player):
print(" _"*5)
tile = "|{}"

for cell in CELLS:
x,y = cell
if x < 4:
line_end = ""
if cell == player:
output = tile.format("X")
else:
out = tile.format("_")
else:
line_end = "\n"
if cell == player:
output = tile.format("X|")
else:
output = tile.format("_|")
print(output, end = line_end)

def game_loop():
monster, door, player = get_locations()

while True:
draw_map(player)
valid_moves = get_moves(player)

print("You're currently in room {}".format(player))
print("You can move {}".format(", ".join(valid_moves)))
print("Enter QUIT to quit")

move = input("> ")
move = move.upper()

if move == 'QUIT':
break
if move in valid_moves:
player = move_player(player,move)
else:
input("\n ** Walls are hard! Don't run into them! **\n")
clear_screen()

clear_screen()
print("Welcome to the dungeon!")