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You have the series: 1,3,5,7,10,12,15,17,... Given a left index L and a right index R as query, output A[L] + A[L+1] + .. + A[R]. INPUT First line will contain a single integer Q, number of queries. Next Q lines will contain two space separated integers L and R. OUTPUT Output single line for every test case giving sum of numbers in the range L to R inclusive. CONSTRAINTS 1 5 1 5 EXAMPLE

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solution.cppC++17

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