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>perl -wMstrict -le
"my $max_x = 99;
...
1
2
max_x: 99

>perl -wMstrict -le
"my $x = 'foo';
...
1, 42
2, 42
x after loop: 'foo'

>perl -wMstrict -le
"our $max_x = 99;
...
1
2
max_x after loop: 42