For another way to do it:
use Data::Dump qw(dump);
push @arr, [1,2,3];
push @arr, [4,5,6];
print dump (@arr);
prints: ([1, 2, 3], [4, 5, 6])
It is strongly recommended that you put "use strict; use warnings;" at the start of every bit of code you write. In this case the compiler would have told you "Scalar value @arr1 better written as $arr1" which is a clue that something is wrong, but might not tell you exactly what in this case.
Note also the use of print dump (@arr) to dump the contents of the array. Try this code fragment using "()" in place of the "" and see what happens to the contents of the array.
Perl is Huffman encoded by design.
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