Everything Shop

Everything Shop is an esolang by User:yoyolin0409. Its distinctive feature is that all the instructions appear to be about buying things from a shop.

Instructions

Purchase <int_value> <var_name>

Integer assignment

Purchase <var_name> of the <text_value> category

String assignment

Checkout <var_name>

Output

Purchase newly arrived <var_name>

Input

Purchase <var_name or int_value> and then add <var_name2 or int_value2>

Addition, The results are stored in <var_name or int_value>

Purchase <var_name or int_value> and then remove <var_name2 or int_value2>

Substruction, The results are stored in <var_name or int_value>