백준 10845 파이썬 큐

import sys import collections N = int(sys.stdin.readline()) deq = collections.deque() for i in range(N): X = list(sys.stdin.readline().split()) if X[0] == 'push': deq.append(X[1]) elif X[0] == 'pop' : if len(deq) > 0: print(deq.popleft()) else: print(-1) elif X[0] == 'size': print(len(deq)) elif X[0] == 'empty': if len(deq) == 0: print(1) else : print(0) elif X[0] == 'front': if len(deq) == 0: p..