+-----+-----+-----+ | | | | | 1 | 2 | x | | | | | +-----+-----+-----+ | | | | | 4 | 6 | y | | | | | +-----+-----+-----+

With the numbers chosen, four of the values could be obtained in two different ways each, and the rest could be obtained in only one way each.

**Your job is to figure out the numeric values of x and y.**

*Note that the square portion already given, containing 1, 2, 4 and 6, would, by itself satisfy the mentioned criterion: all the values from 1 to 13 can be achieved as the total of orthogonally connected stamps, such as 1, 2 and 4 to make 7 (the 6 and the 1 are not orthogonally connected, so that would not be allowed).*