/in/foo.cc: In function 'int main()':
/in/foo.cc:66:31: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
                     numbers+=k-2>>1;
                              ~^~
/in/foo.cc:68:31: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
                     numbers+=k-1>>1;
                              ~^~