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 "FE1"} above \[uFE10] above \[uFE11] above \[uFE12] above \[uFE13] above \[uFE14] above \[uFE15] above \[uFE16] above \[uFE17] above \[uFE18] above \[uFE19] above @ above @ above @ above @ above @ above @ }
}