A. Plus or Minustime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given three integers a, b, and c such that exactly one of these two equations is true:   a+b=c  a-b=c  Output + if the first equation is true, and - otherwise.InputThe first line contains a single integer t (1 \leq t \leq 162) — the number of test cases.The description of each test case consists of three integers a, b, c (1 \leq a, b \leq 9, -8 \leq c \leq 18). The additional constraint on the input: it will be generated so that exactly one of the two equations will be true.OutputFor each test case, output either + or - on a new line, representing the correct equation.ExampleInput
111 2 33 2 12 9 -73 4 71 1 21 1 03 3 69 9 189 9 01 9 -81 9 10Output
+
-
-
+
+
-
+
+
-
-
+
NoteIn the first test case, 1+2=3.In the second test case, 3-2=1.In the third test case, 2-9=-7. Note that c can be negative.
111 2 33 2 12 9 -73 4 71 1 21 1 03 3 69 9 189 9 01 9 -81 9 10
+ - - + + - + + - - + 
['implementation', '*800']