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There are 3 means of concatenation:
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1)"||" operator:
-joins two strings into a single string with no intervening blank.
2)" " or ' ' (blank) operator:
-joins two strings into a single string with one intervening blank.
3)abuttal:
-When a string and symbol are abutted they are joined as though
the "||" operator had been used.

Example: assuming we have the symbol Punc=',' and two strings: 'why me'
and 'Mom?' the results would be:

a) say 'why me'||'Mom?' --> why meMom?
b) say 'why me' 'Mom?' --> why me Mom?
c) say 'why me'Punc'Mom' --> why me,Mom?
d) say 'why me'Punc 'Mom' --> why me, Mom?