Split string in SQL without function - including other values

Question

I've tried to find a solution that does this...I need to split a string that is in a column, to produce one entry per value, retaining the existing column values.

Example:

CREATE TABLE #SplitMeUp(
SomeInt INT NOT NULL
, SomeName VARCHAR(10) NOT NULL
, LongList VARCHAR(100) NOT NULL
)

INSERT INTO #SplitMeUp VALUES (1,'First', 'A,B,C,D')
INSERT INTO #SplitMeUp VALUES (2,'Second', 'B,C,D,E,F,G')
INSERT INTO #SplitMeUp VALUES (3,'Third', 'A')
INSERT INTO #SplitMeUp VALUES (4,'Fourth', 'A,B,C,D,E,F,G')

SELECT * FROM #SplitMeUp

1   First   A,B,C,D
2   Second  B,C,D,E,F,G
3   Third   A
4   Fourth  A,B,C,D,E,F,G

I am trying to achieve the following, but I can't use a function as I don't have permissions, on 2012 so can't use STRING_SPLIT and the solutions I have found just split the actual string, not retain the other values.

1   First   A
1   First   B
1   First   C
1   First   D
2   Second  B
2   Second  C
2   Second  D
2   Second  E
2   Second  F
2   Second  G
3   Third   A
4   Fourth  A
4   Fourth  B
4   Fourth  C
4   Fourth  D
4   Fourth  E
4   Fourth  F
4   Fourth  G