# 더블 엔디드 큐

from collections import deque

fifo = deque()
fifo.append(1)      # 생산자
x = fifo.popleft()  # 소비자

a89339851bb8d5527891cab000da755316b192bf
<mask token>

<mask token>
fifo.append(1)
<mask token>

<mask token>
fifo = deque()
fifo.append(1)
x = fifo.popleft()

from collections import deque
fifo = deque()
fifo.append(1)
x = fifo.popleft()

# 더블 엔디드 큐

from collections import deque

fifo = deque()
fifo.append(1)      # 생산자
x = fifo.popleft()  # 소비자
