10 CLS : rem  10 HOME for Applesoft BASIC
20 PRINT "ENTER TWO NUMBERS, SEPARATED BY A SPACE: ";
30 INPUT X$
40 I = 1 : N = LEN(X$)
50 IF MID$(X$, I, 1) <> " " AND I < N THEN I = I + 1 : GOTO 50
60 A = VAL(LEFT$(X$, I))
70 B = VAL(RIGHT$(X$, N - 1))
80 PRINT A + B
90 END