+ is an infixed operator (resp ’+’ is a prefixed
operator.
If + (resp ’+’) takes as argument a string (resp.
a sequence of objects with a string as first or second argument),
the result is the concatenation of these objects into a string.
warning
+ is infixed and ’+’ is prefixed.
Input :
Ou on tape :
Output :
Input :
Then input:
Or input:
Output :