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Initialization

The order of execution of the modules in a program is constrained by the following rule:

If module M depends on module N and N does not depend on M, then N's body will be executed before M's body, where:

• A module M depends on a module N if M uses an interface that N exports or if M depends on a module that depends on N.
• A module M uses an interface I if M imports or exports I or if M uses an interface that imports I.

Except for this constraint, the order of execution is implementation-dependent.

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