Hexadecimal multiplication table program

10 REM OUTPUT of the multiplication table of 16 numbers
20 CLS:KEY OFF
30 LOCATE 1,10
40 PRINT "HEXADECIMAL MULTIPLICATION TABLE"
50 LOCATE 2,10
60 PRINT "Composition of N*M is at intersection"
70 LOCATE 3,10
80 PRINT "N-th row and M-th column"
90 REM header OUTPUT
100 LOCATE 5,10
110 FOR N=&H1 TO &HF
120 PRINT SPC(2);HEX$(N);
130 NEXT N
140 FOR N=&H1 TO &HF
150 LOCATE 6+N,7
160 PRINT HEX$(N);SPC(1)  Header
170 PRINT SPC(1); '1 space for alignment
180 REM OUTPUT of the N-th LINE.
190 FOR M=&H1 TO &HF
200 PRD=N*M
210 PRINT SPC(3-LEN(HEX$(PRD)));HEX$(PRD);
220 NEXT M:NEXT N