constants

 Constants

    REPORT zajay_practice.

    CONSTANTS: c_v type i value 10.
    write c_v.

Output:
        10.
    
Error for changing constant value
    
    REPORT zajay_practice.
    CONSTANTS: c_v type i value 10.
    write c_v.
    c_v = 20.
    write c_v.

        

        






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