Wrong Answer
/in/foo.cc: In function 'int main()':
/in/foo.cc:45:6: warning: unused variable 'l' [-Wunused-variable]
int l=S,r=0;
^
/in/foo.cc:45:10: warning: unused variable 'r' [-Wunused-variable]
int l=S,r=0;
^
/in/foo.cc: In function 'int main()':
/in/foo.cc:45:6: warning: unused variable 'l' [-Wunused-variable]
int l=S,r=0;
^
/in/foo.cc:45:10: warning: unused variable 'r' [-Wunused-variable]
int l=S,r=0;
^
