foo.cc: In function 'int main()':
foo.cc:8:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  cin>>b+1>>a+1;
       ~^~
foo.cc:8:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  cin>>b+1>>a+1;
            ~^~

自豪的采用jd5进行评测(github.com/masnn/jd5)