Transact SQL :: Calculate Total Between Two Columns?

I have table named #table and three columns. SinGroup(it does not matter, can be anything), Column1, and Column2.

CREATE TABLE #table(
sinGroup NVARCHAR(10)
,column1 INT
,column2 int
);

And i have some data:

INSERT INTO #table(sinGroup,column1,column2) VALUES
('y1',100,0),
('y2',0,60),
('y3',40,20),
('z1',150,0),
('z2',0,50),
('z3',0,50)

I want to know how to get this result set (c1 - c2 and group by Y and Z and the result shown under the column 1):

SinGroup C1 C2

y1 100 0
y2 0 60
y3 40 20
Y 60 0
z1 150 0
z2 0 50
z3 0 50

Z 50 0

And also result like this (c1-c2 and grop by each row,the result show under the column 1):

SinGroup C1 C2
y1 100 0
y1 100 0
y2 0 60
y2 -60 0
y3 40 20
y3 20 0
z1 150 0
z1 150 0
z2 0 50
z2 -50 0
z3 0 50
z3 -50 0