matrix{
ccol{ {} above {roman "0"} above {roman "1"} above {roman "2"} above {roman "3"} above {roman "4"} above {roman "5"} above {roman "6"} above {roman "7"} above {roman "8"} above {roman "9"} above {roman "A"} above {roman "B"} above {roman "C"} above {roman "D"} above {roman "E"} above {roman "F"} }
ccol{ {roman "20A"} above \[u20a0] above \[u20a1] above \[u20a2] above \[u20a3] above \[u20a4] above \[u20a5] above \[u20a6] above \[u20a7] above \[u20a8] above \[u20a9] above \[u20aa] above \[u20ab] above \[u20ac] above \[u20ad] above \[u20ae] above \[u20af] }
ccol{ {roman "20B"} above \[u20b0] above \[u20b1] above \[u20b2] above \[u20b3] above \[u20b4] above \[u20b5] above \[u20b6] above \[u20b7] above \[u20b8] above @ above @ above @ above @ above @ above @ above @ }
ccol{ {roman "20C"} above @ above @ above @ above @ above @ above @ above @ above @ above @ above @ above @ above @ above @ above @ above @ above @ }
}