Wrong Answer
/in/foo.cc: In function 'int main()':
/in/foo.cc:134:19: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
printf("%d\n",ans);
^
/in/foo.cc: In function 'int main()':
/in/foo.cc:134:19: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
printf("%d\n",ans);
^
