Why i have to put comma instead of hypen in this while it was executing for the integer type data entry

#1

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#2

also the command is not executing even putting the comma.

#3

now the command got executed by removing the space in between the parameter name.

#4

please explain this ,and the mistake of space i have done in this program.

#5

Hello @kumarpratikkant,
first name and last name are the variable which are referring to string type how can they have space in between remove the space between the variables and then execute. format

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#6

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