제출 #58347

3
3
2
1

NO

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+
+
-
-
-

4
3
2
1
4

NO

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+
-
-
-
+
-

5
4
5
3
2
1

NO

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+
-
+
-
-
-
-

2
2
1

런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.lang.NumberFormatException: Cannot parse null string
	at java.base/java.lang.Integer.parseInt(Integer.java:630)
	at java.base/java.lang.Integer.parseInt(Integer.java:786)
	at Main.read(Main.java:30)
	at Main.main(Main.java:23)

+
+
-
-

2
1
2

런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "java.util.Deque.peekLast()" is null
	at Main.main(Main.java:21)

+
-
+
-

4
1
4
2
3

런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "java.util.Deque.peekLast()" is null
	at Main.main(Main.java:21)

NO