constexpr short q1[4][3][2] = { {1}, {2, 3}, {4, 5, 6} };
static_assert(q1[0][0][0] == 1);
static_assert(q1[1][0][0] == 2);
static_assert(q1[1][0][1] == 3);
static_assert(q1[2][0][0] == 4);
static_assert(q1[2][0][1] == 5);
static_assert(q1[2][1][0] == 6);