#!/usr/bin/perl
# your code goes here
use strict;
use warnings;
my $z = [];
$z->[0] = $z;
$z->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[21312] = 5;
$z->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0]->[0] = 1;
print $z->[0], ", ", $z->[21312], "\n";
IyEvdXNyL2Jpbi9wZXJsCiMgeW91ciBjb2RlIGdvZXMgaGVyZQoKdXNlIHN0cmljdDsKdXNlIHdhcm5pbmdzOwoKbXkgJHogPSBbXTsKJHotPlswXSA9ICR6Owokei0+WzBdLT5bMF0tPlswXS0+WzBdLT5bMF0tPlswXS0+WzBdLT5bMF0tPlswXS0+WzBdLT5bMF0tPlswXS0+WzBdLT5bMF0tPlswXS0+WzBdLT5bMF0tPlswXS0+WzBdLT5bMF0tPlswXS0+WzBdLT5bMjEzMTJdID0gNTsKJHotPlswXS0+WzBdLT5bMF0tPlswXS0+WzBdLT5bMF0tPlswXS0+WzBdLT5bMF0tPlswXSA9IDE7CgpwcmludCAkei0+WzBdLCAiLCAiLCAkei0+WzIxMzEyXSwgIlxuIjsK