(
−
E
4
+
E
5
−
E
6
)
+
(
−
E
10
+
E
11
−
E
12
)
+
.
.
.
(
−
E
4
+
E
5
−
E
6
)
+
(
−
E
10
+
E
11
−
E
12
)
+
.
.
.
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