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2.4.9  Add an object to a string : +

+ 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.
+ is infixed and ’+’ is prefixed.
Input :


Ou on tape :


Output :


Input :


Then input:


Or input:


Output :


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