Wrong Answer
/in/foo.cc: In function 'int main()':
/in/foo.cc:10:30: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
printf("%d",(n>>1)-(n>>2)+(n+1>>1)-((n-1)/3+1>>1));
~^~
/in/foo.cc:10:45: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
printf("%d",(n>>1)-(n>>2)+(n+1>>1)-((n-1)/3+1>>1));
~~~~~~~^~
