What Coordinates are the chess pieces on?

For White at the start of the game:

a1 = rook

b1 = knight

c1 = bishop

d1 = queen

e1 = king

f1 = bishop

g1 = knight

h1 = rook

a2 - h2 = 8 pawns

For Black at the start of the game:

a8 = rook

b8 = knight

c8 = bishop

d8 = queen

e8 = king

f8 = bishop

g8 = knight

h8 = rook

a7-h7 = 8 pawns