Unique Mailboxes - Tabby Multi-Cache

 A simple off-set multi cache.

You don't need to touch or open the letterbox.
Just collect the info, do the sums.
Maybe take a photo and move to ground zero.

Here is a Cat Lover having fun with their letterbox.

Fact 1
    Female cats are typically right-pawed

    while male cats are typically left-pawed.

Fact 2
    A group of cats is called a clowder.

Fact 3
    Senior cats start to experience something like

    human dementia or Alzheimer’s disease

Number of letterboxes = A
The cats number = BCD
The biggest green letterbox's number = EFG

The cache is at

          S 37 52.(B+F)(E)(D)

          E 147 36.(E+1)(A-E)(C-2) 

Check sum is 25 , 33
(just add all the numbers up for South , and then for East)