We thought that people might also like find out when Will was here.
Will's favourite colour is yellow.
When you find out that information you'll have a number which
you should write down in YYYYMMDD format.
Subtract 15684387 from this number to give you the digits of the
N portion of the final coordinates. (DD MM.MMM format)
Subtract 12121456 from it to give you the digits of the W
portion of the final coordinates. (DD MM.MMM format)