#include<bits/stdc++.h>
using namespace std;
#define WA int
#define WAWA main
#define WAWAWA long long
#define WAWAWAWA a
#define WAWAWAWAWA b
#define WAWAWAWAWAWA c
#define WAWAWAWAWAWAWA cin
#define WAWAWAWAWAWAWAWA cout
#define WAWAWAWAWAWAWAWAWA if
#define WAWAWAWAWAWAWAWAWAWA else
#define AC + 
#define ACAC -
#define ACACAC ==
#define UKE "plus"
#define CE "minus"
#define OLE "illegal"
#define AK return 0
WA WAWA(){
	WAWAWA  WAWAWAWA,WAWAWAWAWA,WAWAWAWAWAWA;
	WAWAWAWAWAWAWA>>WAWAWAWA>>WAWAWAWAWA>>WAWAWAWAWAWA;
	WAWAWAWAWAWAWAWAWA(WAWAWAWA AC WAWAWAWAWA ACACAC WAWAWAWAWAWA){
		WAWAWAWAWAWAWAWA << UKE;
		AK;
	}
	WAWAWAWAWAWAWAWAWAWA WAWAWAWAWAWAWAWAWA(WAWAWAWA ACAC WAWAWAWAWA ACACAC WAWAWAWAWAWA){
		WAWAWAWAWAWAWAWA << CE;
		AK;
	}
	WAWAWAWAWAWAWAWAWAWA{
		WAWAWAWAWAWAWAWA << OLE;
		AK;
	}
}

所以我为什么AC了？！

AC记录（加了代码公开）