/in/foo.cc: In function 'int main()':
/in/foo.cc:6:22: error: expected ')' before '{' token
  while(getline(cin,s){
                      ^
/in/foo.cc:7:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<s.length();i++){
                ^
/in/foo.cc:15:8: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if(i==(s.length()-1))
        ^