/in/foo.cc:3:3: error: empty character constant
 s=''
   ^~
/in/foo.cc:13:11: warning: character constant too long for its type
     print('Right')
           ^~~~~~~
/in/foo.cc:17:1: error: empty character constant
 '''
 ^~
/in/foo.cc:17:3: warning: missing terminating ' character
 '''
   ^
/in/foo.cc:17:3: error: missing terminating ' character
/in/foo.cc:1:1: error: 's' does not name a type
 s=input()
 ^