03. To-do List

todo_list = [0] * 10
command = input()

while command != 'End':
    current = command.split('-')
    todo_list.pop(int(current[0]) - 1)
    todo_list.insert(int(current[0]) - 1, current[1])
    command = input()

print([x for x in todo_list if x != 0])