boj-2164. 카드 2

import collections

N = 6

queue = collections.deque([i for i in range(1, N+1)])

print(list(queue))
print("-"*5)

while queue :
    tmp = queue.popleft()
    last_num = queue.popleft()
    queue.append(last_num)    
    
    # print(list(queue))
    
    if len(queue) == 1:
        print(queue[0])
        break