10 PRINT CHR$(205.5+RND(1)); : GOTO 10

in Sinclair Basic:

1 FOR i=0 TO 7
2 READ a
3 POKE USR "A"+i,a
4 POKE USR "B"+(7-i),a
5 NEXT i
6 DATA 3,7,14,28
7 DATA 56,112,224,192
8 REM
9 REM
10 PRINT CHR$ (144+RND);
20 GO TO 10

#10PRINT