I-1) ______ ______ ______ ______ ______ ______ P | | | | | | | | | | | | | | | | | | ->|17| |-->|15| |-->|13| |-->|19| |-->|21| |-->|23|\| | | | | | | | | | | | | | | | | | | ------ ------ ------ ------ ------ ------ ______ Avail | | | -->|25| | | | | ------ I-2) 15 I-3) 6 J-1) 2 1 4 8 9 J-2) Duplicates list P J-3) 2 8 9 1 5 2 8 9