int8_t fullSquare3[256] = {
  0, 2, 4, 6, 8, 10, 12, 14,
  16, 18, 20, 22, 23, 25, 27, 28,
  29, 31, 32, 33, 34, 35, 35, 36,
  37, 37, 38, 38, 38, 38, 39, 39,
  39, 39, 39, 38, 38, 38, 38, 38,
  38, 38, 38, 38, 38, 38, 38, 38,
  39, 39, 40, 40, 41, 42, 43, 44,
  45, 46, 47, 49, 51, 52, 54, 56,
  58, 61, 63, 65, 68, 70, 73, 76,
  79, 81, 84, 87, 90, 93, 96, 98,
  101, 104, 106, 109, 111, 114, 116, 118,
  120, 121, 123, 124, 125, 126, 126, 127,
  127, 127, 126, 126, 125, 124, 122, 120,
  118, 116, 113, 110, 107, 104, 100, 96,
  92, 87, 83, 78, 72, 67, 62, 56,
  50, 44, 38, 32, 25, 19, 12, 6,
  0, -7, -13, -20, -26, -33, -39, -45,
  -51, -57, -63, -68, -73, -79, -84, -88,
  -93, -97, -101, -105, -108, -111, -114, -117,
  -119, -121, -123, -125, -126, -127, -127, -128,
  -128, -128, -127, -127, -126, -125, -124, -122,
  -121, -119, -117, -115, -112, -110, -107, -105,
  -102, -99, -97, -94, -91, -88, -85, -82,
  -80, -77, -74, -71, -69, -66, -64, -62,
  -59, -57, -55, -53, -52, -50, -48, -47,
  -46, -45, -44, -43, -42, -41, -41, -40,
  -40, -39, -39, -39, -39, -39, -39, -39,
  -39, -39, -39, -39, -39, -39, -40, -40,
  -40, -40, -40, -39, -39, -39, -39, -38,
  -38, -37, -36, -36, -35, -34, -33, -32,
  -30, -29, -28, -26, -24, -23, -21, -19,
  -17, -15, -13, -11, -9, -7, -5, -3
};