The Browns began the season with a division game against the Cincinnati Bengals. The Bengals struck first, with two Mike Nugent field goals and a Jermaine Gresham touchdown reception. Down 13-0, the Browns struck back, with Colt McCoy completing two touchdown passes to give Cleveland the lead at halftime. Phil Dawson gave the Browns an insurance field goal, but late in the fourth, Bengals backup QB Bruce Gradkowski caught the Browns defense slow out of the huddle and hit A. J. Green for a 41-yard touchdown that proved to be the game winner. With the 27-17 loss, the Browns started the season 0-1.

Answer this question based on the article: How many points were scored in the first half by both teams?
27