/in/foo.cc: In function 'int main()':
/in/foo.cc:40:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     cin>>a+1>>b+1;
          ~^~
/in/foo.cc:40:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     cin>>a+1>>b+1;
               ~^~