Wrong Answer
/in/foo.cc: In function 'int main()':
/in/foo.cc:48:22: warning: unused variable 'qll' [-Wunused-variable]
unsigned long long qll=0;
^~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:48:22: warning: unused variable 'qll' [-Wunused-variable]
unsigned long long qll=0;
^~~
