General order outfile governs naming of the stdout dataset. As default, the middle qualifier in the name of this dataset is 'RXS'. Assigning a value to outfile as a general order will change this qualifier.
nbr = random()
'Square of' nbr 'is' nbr**2
Writing will be done on the dataset '<user>.yrsa.data' where <user> is actual TSO user ident.
Default stdout dataset is automatically allocated by RXS. This applies as well if outfile has changed its name.
outfile is at maximum eight characters, and have to obey to IBM syntax for names, that is first character non numeric, and using no special characters.