SQL Server 2012 :: Making Query For Presenting Data In Different Format?

I have below table:

IF OBJECT_ID('tempdb..#complaints') IS NOt NULL
DROP TABLe #complaints

--===== Create the test table with

create table #cs([Year] float,
[Week] float,
[Month] float,
[C#] float,
[Dept] nvarchar(255)
,[Issue] nvarchar(255), [Type] nvarchar(255), [Dept age] nvarchar(255))

--===== All Inserts into the IDENTITY column

INSERT INTO #cs
([Year], [ Week], [ Month], [C#],[Dept],[Issue], [Type], [Dept age])
SELECT 2015, 14, 4, 188, D1,I1,T1, 5 UNION ALL
SELECT 2015, 14, 4, 452,d1, I1, T2, 5 UNION ALL
SELECT 2015, 14, 4, 63, d1, I1, T1, 6 UNION ALL
SELECT 2015, 14, 4, 9, d1,I2, T1, 7 UNION ALL
SELECT 2014, 14, 4, 187, D1,I1,T1, 5 UNION ALL
SELECT 2014, 14, 4, 451,d1, I1, T2, 5 UNION ALL
SELECT 2014, 14, 4, 62, d1, I1, T1, 6 UNION ALL
SELECT 2014, 14, 4, 10, d1,I2, T1, 7 UNION ALL)

and i want to have a table in below format: (query for it)

Week, Month, C1#,c2# Dept,Issue, Type, Dept age
14, 4 188 187 d1 i1 t1 5
14, 4 452 451 d1 i1 t2 5

I.E. I WANT two columns C1# and C2#, where C1# contains data from 2015 and C2# contains data from previous year (2014). If 2015 data is not present, then C1# will contain data of 2014 and C2# will contain data of 2013.