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  1. or download this
    >perl -e "use strict; if (my $x = foo()) { } print $x;
    Global symbol "$x" requires explicit package name at -e line 1.
    Execution of -e aborted due to compilation errors.
    
  2. or download this
    sub P1::DESTROY { print 'd'; }
    sub P2::DESTROY { print 'c'; }
    ...
       print('e');
    }
    print("\n");