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my ($op, $arg1, $arg2) = (@{$conwithposition{$key_pos}}[1],@{$conwithp +os +ition{$key_pos}}[2],$line[@{$conwithposition{$key_pos}}[0]]);
my ($op, $arg1, $arg2) = ( @{ $conwithposition{$key_pos} }[1,2], $line[ $conwithposition{$key_pos}->[0] ] );