Grid location: E1

Start at the upper-left corner of a 48x48 baseplate.
Count out the 1x1 tiles and affix them from left-to-right.
A=black, B=dark grey, C=medium grey, D=light grey, E=white.

Row 1 :  48D
Row 2 :  16D 1E 29D 1C 1D
Row 3 :  11D 1E 29D 1C 6D
Row 4 :  34D 1C 3D 1C 9D
Row 5 :  25D 1C 6D 1C 10D 1C 2D 1C 1D
Row 6 :  4D 1C 2D 1C 13D 1C 8D 1C 17D
Row 7 :  1D 1C 7D 1C 4D 1C 12D 1C 7D 1C 4D 1C 7D
Row 8 :  10D 1C 8D 1C 28D
Row 9 :  4D 1C 12D 1C 4D 1C 1D 1C 4D 1C 6D 1C 2D 1C 2D 1C 2D 1C 1D
         1C
Row 10:  6D 1C 8D 1C 9D 1C 7D 1C 14D
Row 11:  1D 1C 1D 1C 4D 1C 2D 1C 1D 1C 7D 1C 5D 1C 3D 1C 7D 1C 3D
         1C 4D
Row 12:  6D 1C 3D 1C 8D 1C 3D 1C 11D 1C 6D 1C 5D
Row 13:  1C 1D 1C 2D 1C 6D 1C 1D 1C 1D 1C 1D 1C 2D 1C 3D 1C 3D 1C
         2D 1C 1D 1C 3D 1C 6D 1C 1D 1C
Row 14:  7D 1C 2D 1C 19D 1C 11D 1C 5D
Row 15:  3D 1C 1D 1C 2D 1C 5D 1C 1D 1C 2D 1C 3D 1C 1D 1C 2D 1C 6D
         1C 2D 1C 1D 1C 3D 1C 3D
Row 16:  1D 1C 9D 1C 5D 1C 4D 1C 9D 1C 6D 1C 6D 1C 1D
Row 17:  3D 1C 1D 1C 1D 1C 1D 1C 3D 1C 5D 1C 4D 1C 3D 1C 1D 1C 4D
         1C 7D 1C 4D
Row 18:  1C 5D 1C 3D 1C 3D 1C 1D 1C 9D 1C 11D 1C 2D 1C 3D 1C 1D 1C
Row 19:  1D 1C 1D 1C 7D 1C 8D 1C 11D 1C 1D 1C 13D
Row 20:  8D 1C 6D 1C 2D 1C 9D 1C 2D 1C 5D 1C 10D
Row 21:  1D 1C 2D 1C 1D 1C 6D 1C 11D 1C 9D 1C 4D 1C 7D
Row 22:  9D 1C 1D 1C 7D 1C 3D 1C 3D 1C 1D 1C 12D 1C 1D 1C 3D
Row 23:  2D 1C 17D 1C 12D 1C 1D 1C 1D 1C 7D 1C 1D 1C
Row 24:  13D 1C 2D 1C 4D 1C 3D 1C 4D 1C 8D 1C 8D
Row 25:  5D 1C 17D 1C 4D 1C 19D
Row 26:  15D 1C 1D 1C 8D 1C 5D 1C 1D 1C 13D
Row 27:  9D 1C 2D 1C 8D 1C 7D 1C 11D 1C 6D
Row 28:  20D 1C 3D 1C 6D 1C 5D 1C 10D
Row 29:  7D 1C 10D 1C 3D 1C 5D 1C 6D 1C 9D 1C 2D
Row 30:  2D 1C 9D 1C 1D 1C 5D 1C 4D 1C 7D 1C 2D 1C 2D 1C 1D 2C 5D
Row 31:  31D 1C 13D 1C 2D
Row 32:  4D 1C 2D 1C 1D 1C 7D 1C 5D 1C 4D 1C 1D 1C 5D 1C 1D 1C 8D
         1C
Row 33:  6D 1C 6D 1E 8D 1E 21D 1C 3D
Row 34:  35D 1C 4D 1C 1D 1C 5D
Row 35:  48D
Row 36:  3D 1C 44D
Row 37:  1D 1C 5D 1C 6D 1C 3D 1C 29D
Row 38:  4D 1C 3D 1C 1D 1C 1D 1C 3D 1C 4D 1C 1D 1C 1D 1C 2D 1C 2D
         1C 2D 1C 9D 1C 3D
Row 39:  6D 1C 7D 1C 23D 1C 1D 1C 1D 1C 4D 1C
Row 40:  1D 1C 1D 1C 1D 1C 3D 1C 2D 1C 6D 1C 11D 1C 3D 1C 12D
Row 41:  11D 1C 3D 1C 5D 1C 1D 1C 3D 1C 2D 1C 7D 1C 3D 1C 1D 1C 1D
         1C 1D
Row 42:  2D 1C 1D 1C 1D 1C 1D 2C 7D 1C 7D 1C 7D 1C 2D 1C 11D
Row 43:  1C 12D 1C 1D 1C 3D 1C 1D 1C 1D 1C 4D 2C 11D 1C 4D 1C 1D
Row 44:  1D 1C 1D 1C 1D 1C 2D 1C 1D 1C 1D 1C 4D 1C 7D 1C 6D 1C 1D
         1C 2D 1C 1D 1C 3D 2C 3D
Row 45:  7D 1C 6D 1C 1D 1C 2D 1C 1D 1C 1D 1C 3D 1C 3D 1C 14D 1C 1D
Row 46:  1C 2D 1C 6D 1C 2D 1C 10D 1C 4D 1C 8D 1C 2D 1C 1D 1C 4D
Row 47:  2D 1C 3D 1C 1D 1C 3D 1C 4D 1C 1D 2C 1D 1C 2D 1C 1D 1C 3D
         1C 1D 1C 1D 1C 1D 1C 1D 1C 6D 1C 1D
Row 48:  4D 1C 5D 1C 4D 1C 13D 1C 12D 1C 2D 1C 2D


Totals:
   A: 0
   B: 0
   C: 314
   D: 1986
   E: 4