/in/foo.cc: In function 'int main()':
/in/foo.cc:12:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  cin >> a+1 >> b+1;
         ~^~
/in/foo.cc:12:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  cin >> a+1 >> b+1;
                ~^~