[0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, ],
[0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, ],
[0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0, ],
[0, 0, 1, 2, 0, 1, 2, 0, 1, 0, 0, 1, 0, 2, 1, 0, 2, 1, 0, 0, ],
[0, 0, 1, 3, 2, 1, 0, 2, 1, 0, 0, 1, 2, 0, 1, 2, 3, 1, 0, 0, ],
[0, 0, 1, 3, 3, 2, 0, 0, 2, 0, 0, 2, 0, 0, 2, 3, 3, 1, 0, 0, ],
[0, 0, 1, 3, 3, 3, 2, 0, 1, 0, 0, 1, 0, 2, 3, 3, 3, 1, 0, 0, ],
[0, 0, 1, 3, 3, 3, 3, 2, 1, 0, 0, 1, 2, 3, 3, 3, 3, 1, 0, 0, ],
[0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, ],
[0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, ],
[0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, ],
[0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, ],
[0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, ],
[0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, ],
[0, 0, 1, 2, 0, 2, 0, 2, 1, 2, 0, 2, 0, 0, 2, 0, 2, 1, 0, 0, ],
[0, 0, 1, 0, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 3, 2, 0, 1, 0, 0, ],
[0, 0, 1, 0, 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 1, 0, 0, ],
[0, 0, 1, 0, 0, 1, 0, 3, 1, 3, 0, 3, 0, 3, 1, 0, 0, 1, 0, 0, ],
[0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, ],
[0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, ],

0 = color(201, 122, 51)
1 = color(179, 84, 51)
2 = color(135, 59, 51)
3 = color(61, 0, 3)

switch(a) {
   case 0:
       fill(color(201, 122, 51));
       break;
   case 1:
       fill(color(179, 84, 51));
       break;
   case 2:
       fill(color(135, 59, 51));
       break;
   case 3:
       fill(color(61, 0, 3));
       break;
}