[[1, 5, 38], [39, 2, 11], [21, 43, 8]] * [[1], [39], [21]] = [[40, 17, 5], [41, 22, 14]] [[2, 13, 16], [16, 39, 7]] * 0, 174 << $RB_1[[14, 16, 39]] = $RG_1 [[0, 4, 24]], [24, 23, 14], [42, 17] * 5, [14, 36, 39], [40, 43] * 2, [41,42,5]] = N [[3, 19, 15], [25, 26, 14] == $RR_1