def METHOD_NAME(self, lpair, rpair):
    ltext, lnum = lpair
    rtext, rnum = rpair
    if lnum == 1 and rnum < 100:
        return (rtext, rnum)
    elif 100 > lnum > rnum:
        return ("%s-%s" % (ltext, rtext), lnum + rnum)
    elif lnum >= 100 > rnum:
        if ltext[-1] in self.modifiers:
            return ("%s %s" % (ltext[:-1], rtext), lnum + rnum)
        else:
            return ("%s %s" % (ltext+"ల", rtext), lnum + rnum)
    elif rnum > lnum:
        return ("%s %s" % (ltext, rtext), lnum * rnum)
    return ("%s %s" % (ltext, rtext), lnum + rnum)