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a)You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change.
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c)If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a
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b)Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost
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5.You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify
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If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances.
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