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Задачи

Octagons

Octagons

Лимит времени 1 секунда
Лимит использования памяти 64 MiB

Below is a picture of an infinite hyperbolic tessellation of octagons. If we think of this as a graph of vertices (of degree three), then there exists an isomorphism of the graph which maps any vertex x onto any other vertex y. Every edge is given a label from the set {a,b,c} in such a way that every vertex has all three types of edges incident on it, and the labels alternate around each octagon. Part of this labeling is illustrated in the diagram.

So a path in this graph (starting from any vertex) can be specified by a sequence of edge labels. Your job is to write a program which, given a squence of labels such as "abcbcbcabcaccabb", returns "closed" if the path ends on the same vertex where it starts, and returns "open" otherwise.

Входные данные

The input will begin with a number Z200 on a line by itself. This is followed by Z lines, each of which is a squence of length at least 1 and at most 40 of 'a's 'b's and 'c's.

Выходные данные

For each input instance, the output will be the words "closed" or "open", each on a single line.

Пример

Входные данные #1
2
abababab
abcbcbcbcba
Выходные данные #1
closed
open