UMaine mathematics majors Nathan Dunn and Stuart Lathrop each scored 10 points (out of 100), placing them in the 70th percentile in the 37th William Lowell Putnam Competition that took place Dec. 1. This competition is regarded as the most difficult college-level mathematics contest in North America. In all, 4,277 students from 578 colleges and universities in the United States and Canada competed. Only seven contestants received 69 or more points, including one perfect score. About half of the participants did not earn any points at all, according to Eisso Atzema of the UMaine Department of Mathematics and Statistics.