Run:

Values in the tree:
0 (1441)
1 (1399)
2 (1487)
3 (1471)
4 (1432)
5 (1345)
6 (1425)

The tree is

                            3 (1471)
 0 (1441)                                     5 (1345)
          1 (1399)                   4 (1432)          6 (1425)
                   2 (1487)