Floodfill: 31, 21, 36, 23 -> 00003451|51, 21, 60, 30 -> 001843b2|31, 24, 51, 65 -> 012c13a3|42, 24, 43, 45 -> 00002a6b|60, 25, 63, 30 -> 00026d80|63, 32, 64, 36 -> 00011899|55, 39, 57, 42 -> 0000e30a|48, 39, 63, 48 -> 0024cef2