Missing and wrong brackets

There are some missing and wrong brackets. So the tutorial starts with an error. After fixing this it works great.

                                    ` This code was downloaded from The Game Creators
                                    ` It is reproduced here with full permission
                                    ` http://www.thegamecreators.com
                                    
                                    rem TUT5C
rem Control player direction
rotate camera camera angle x(0)+(mousemovey()/2.0),camera angle y(0)+(mousemovex()/2.0),0
rem Control player movement
cx#=camera angle x(0) : cy#=camera angle y(0)
if upkey()=1 then xrotate camera 0,0 : move camera 0,0.2 : xrotate camera 0,cx#
if downkey()=1 then xrotate camera 0,0 : move camera 0,-0.2 : xrotate camera 0,cx#
if leftkey()=1 then yrotate camera 0,cy#-90 : move camera 0.2 : yrotate camera 0,cy#
if rightkey()=1 then yrotate camera 0,cy#+90 : move camera 0.2 : yrotate camera 0,cy#
if wrapvalue(camera angle x(0) > 40) and wrapvalue(camera angle x(0) < 180) then xrotate camera 0,40
if wrapvalue(camera angle x(0) > 180) and wrapvalue(camera angle x(0) < 280) then xrotate camera 0,280