/in/foo.cc:4:0: warning: "int" redefined
 #define int a,b; de
 
/in/foo.cc:3:0: note: this is the location of the previous definition
 #define int main(){ zhen
 
/in/foo.cc:5:12: warning: ISO C++11 requires whitespace after the macro name
 #define cin>>a>>b; shi
            ^~
/in/foo.cc:6:13: warning: ISO C++11 requires whitespace after the macro name
 #define cout<<a + b<<endl; tai
             ^~
/in/foo.cc:8:9: error: macro names must be identifiers
 #define } le
         ^
/in/foo.cc:9:1: error: 'lsx' does not name a type
 lsx zhen de shi tai shuai le
 ^~~