BNU OJ 50998 BQG's Messy Code

#include <cstdio>
#define _(l) int l
#define ___(l,L) for (_(o)=0,x=l o*2;o<x;o++)O= L o;
#define __ _ ( _ )
const __=0x80000000;
_(main)()
{
    int T;
    scanf("%d",&T);
    while(T--){
    _(O);
    scanf("%d",&O);
    if(O&_)___(-,-~)
        else ___(+,~-)
            printf("%d\n",-O);
    }
    return ;
}