REPEAT
        hereY% = VPOS
        INPUT LINE "" q$
        hereX% = LEN(q$) + 1
        WHILE LEFT$(q$, 1) = " "
          q$ = MID$(q$, 2)
        ENDWHILE
        space% = INSTR(q$, " ")
        IF space% THEN
          a = VAL(LEFT$(q$, space% - 1))
          b = VAL(MID$(q$, space% + 1))
          PRINT TAB(hereX%, hereY%) ; a + b
        ENDIF
      UNTIL FALSE