1040 INPUT "GREETING PROGRAM NAME => ";N$: CALL -958
1050 IF N$ = "" THEN CALL -1052: PRINT "ILLEGAL FILE NAME !": FOR I = 1 TO 1000: NEXT I: VTAB 8: CALL -958: GOTO 1040
1060 IF LEN(N$) >30 OR ASC( LEFT$(N$,1)) <65 OR ASC( LEFT$(N$,1) >90 THEN CALL -1052: PRINT "ILLEGAL FILE NAME !": FOR I = 1 TO 1000: NEXT I: VTAB 8: CALL -958: GOTO 1040