模拟，写的比较土，别吐槽

#include 
     
      using namespace std;typedef long long ll ;typedef double    dl ;#define INF 0x7fconst int  inf = 987654321;const int sz = 1e6 + 5;const int mod = 1e9 + 7;const int sqrtn = 300;#define f(i,l,r) for(int i=l;i<=r;++i)#define g(i,l,r) for(int i=l;i>=r;--i)#define CLR(arr,val) memset(arr,val,sizeof(arr))#define sz(a)   strlen(a)#define FAST_IO ios::sync_with_stdio(false);cin.tie(0);#define lowbit(x) x&(-x)#define X first#define Y second #define pb push_back#define pii pair
      
       int dir[8][2]={
   {
   1,0},{-1,0},{
   0,1},{
   0,-1},{
   1,1},{
   1,-1},{-1,1},{-1,-1}};ll a,b;void work(){    cin>>a>>b;    while(1)    {        if(a==0||b==0)        {            break;        }        else        {            if(a>=2*b)            {                a=a-a/(2*b)*(2*b);                continue;            }            else            {                if(b>=2*a)                {                    b=b-b/(2*a)*(2*a);                    continue;                }                else                {                    break;                }            }        }    }       cout<
       <<" "<<