Fans gave their team a welcome that has been five months in themaking, and the Giants rewarded their faithful witha sharp 4-3 victory over the A's in the first of a three-gameexhibition series Monday night. The Giants last played at AT&T Parkon Oct. 28. The fans had plenty of cheering in reserve since that9-0 win over Texas in Game 2 of the World Series, during which thecrowd sang and danced in a union of bliss during an impromptueighth-inning concert from Steve Perry of Journey.