These Chords are very akward and partially hard, but you can actually play these to the song (the versions with Am or Em or so in the beginning won't work or didn't for me). In the bridge i've written "C" and then "C(+1) and "C(+3)". This means that you just slide the C chord (01023) 1 and later 3 chords up. so C(+1) is 02034 and C(+3) is...