Nikkei rises on Wall Street gains; heads for 3 straight monthly gain

* For the month, Nikkei has gained 3.5 pct * Fujifilm soars on M&A deal * BOJ tankan, U.S. jobs data eyed this week By Ayai Tomisawa TOKYO, March 31 (Reuters) - Japan's Nikkei share average rose on Tuesday, tracking gains in Wall Street and rebounding from a sharp decline last week, but investors refrained from taking large positions before key economic data later in the week. The Nikkei benchmark rose 0.6 percent to 19,525.82 points by mid-morning. After a sharp drop la